Facsimile systems, transceivers, and marking transducers therefor

Claim 2

In combination in a facsimile system for receiving signals representing an image and converting the signals into the image on a document, a turntable, an electrical motor operatively interconnected with said turntable for driving said turntable, a power source operatively interconnected with said motor for supplying electrical energy to said motor, said power source having an input and an output, said power source including first frequency standard means, means operatively coupled to said first frequency standard means for driving said first frequency standard means, a power amplifier having an input and an output, said amplifier having its input interconnected with said first frequency standard means and its output interconnected with said motor, second frequency standard means, and means for providing a controlled connection of the driving means with said output of said amplifier at first particular times and with said second frequency standard means at second particular times different from said first particular times.

Claim 3

In combination in a facsimile unit for producing on a medium a copy of the contents of a document, rotatable support means, a pickup transducer mounted on said support means for scanning said document during the rotation of said support means to produce a signal having at each instant characteristics dependent upon the contents of said document, a reproduction transducer mounted on said support means for scanning said medium during the rotation of said support means to produce a mark on said medium in accordance with the characteristics of said signal, a motor operatively interconnected with said support means for driving said support means at a particular speed, a power source operatively coupled to said motor for supplying electrical energy to said motor, said source including oscillating means having capabilities of being driven at a particular frequency or of running free at substantially the particular frequency to control the particular speed at which said support means is driven by said motor in accordance with the frequency of said oscillating means, means controllably coupled to the oscillating means for driving the oscillating means at the particular frequency, and means operatively coupled to the oscillating means and to the last mentioned means for controlling whether the oscillating means runs free or is driven.

Claim 4

In combination in a facsimile unit for producing on a medium a copy of the contents of a document, rotatable support means, a pickup transducer mounted on said support means for scanning said document during the rotation of said support means to produce a signal having at each instant characteristics dependent upon the contents of said document, a reproduction transducer mounted on said support means for scanning said medium during the rotation of said support means to produce a mark on said medium in accordance with the characteristics of said signal, a motor operatively interconnected with said support means for driving said support means at a particular speed, a power source operatively coupled to said motor for supplying electrical energy to said motor, said source including oscillating means having capabilities of being driven at a particular frequency or of running free at substantially the particular frequency to control the particular speed at which said support means is driven by said motor in accordance with the frequency of said oscillating means, means controllably coupled to the oscillating means for driving the oscillating means at the particular frequency, and means operatively coupled to the oscillating means and to the last mentioned means for controlling whether the oscillating means runs free or is driven.

Claim 5

In combination, a magnetic circuit having an air gap to define opposite magnetic poles across the air gap for the production of flux by the poles, a thin planar member disposed in said air gap with the planar member disposed in a direction transverse to the flux between the magnetic poles for movement of the member in the tranSverse direction, a thin electrically conductive circuit included with said member with a portion of the circuit positioned in the transverse direction between the poles to thereby impose a force on said armature, and means electrically coupled to the electrically conductive circuit for obtaining a flow of current through the circuit to obtain a movement of the thin planar member in the transverse direction in accordance with the flow of current.

Claim 6

In combination, a magnetic circuit having an air gap to define opposite magnetic poles across the air gap for the production of flux by the poles, a thin planar member disposed in said air gap with the planar member disposed in a direction transverse to the flux between the magnetic poles for movement of the member in the tranSverse direction, a thin electrically conductive circuit included with said member with a portion of the circuit positioned in the transverse direction between the poles to thereby impose a force on said armature, and means electrically coupled to the electrically conductive circuit for obtaining a flow of current through the circuit to obtain a movement of the thin planar member in the transverse direction in accordance with the flow of current.

Claim 7

The combination set forth in claim 3 wherein the magnetic circuit has a planar air gap of substantially uniform width and wherein the thin electrically conductive circuit is printed on the thin planar member.

Claim 8

The combination set forth in claim 3 wherein the thin planar member is provided with first and second opposite surfaces defining the member and wherein portions of the thin electrically conductive circuit are included on the first and second opposite surfaces of the thin planar member.

Claim 9

The combination set forth in claim 3 wherein the opposite magnetic poles in the magnetic circuit respectively have north and south polarities.

Claim 10

The combination set forth in claim 3 wherein the magnetic circuit has a planar air gap of substantially uniform width and wherein the stylus is disposed in contiguous relationship to the medium.

Claim 11

In combination for controlling the recording of information on a medium, a magnetic circuit having an air gap to define first and second magnetic poles at opposite ends of the air gap and to produce a magnetic field across the air gap, an armature comprising a thin planar member having a thickness less than the width of said air gap and disposed in the air gap for movement through said air gap in the planar direction, at least one thin conductor included on said member in a plane substantially perpendicular to the magnetic field across the air gap to obtain the imposition of a translating force on said armature, a stylus operatively coupled to the armature for movement with the armature and disposed relative to the medium for controlled movement into engagement with the medium in accordance with the movements of the armature, and means operatively coupled to the thin conductor for obtaining a controlled flow of current through the conductor with characteristics representing information for recording on the medium to obtain movements of the armature in the planar direction in accordance with the characteristics of the current.

Claim 12

In combination for controlling the recording of information on a medium, a magnetic circuit having an air gap to define first and second magnetic poles at opposite ends of the air gap and to produce a magnetic field across the air gap, an armature comprising a thin planar member having a thickness less than the width of said air gap and disposed in the air gap for movement through said air gap in the planar direction, at least one thin conductor included on said member in a plane substantially perpendicular to the magnetic field across the air gap to obtain the imposition of a translating force on said armature, a stylus operatively coupled to the armature for movement with the armature and disposed relative to the medium for controlled movement into engagement with the medium in accordance with the movements of the armature, and means operatively coupled to the thin conductor for obtaining a controlled flow of current through the conductor with characteristics representing information for recording on the medium to obtain movements of the armature in the planar direction in accordance with the characteristics of the current.

Claim 13

The combination set forth in claim 8, including, means operatively coupled to the magnetic circuit and the medium for obtaining a relative movement between the member and the medium to obtain a recording of information by the stylus at different positions on the medium.

Claim 14

A transducer for use in a facsimile system including a medium upon which data is to be reproduced, including: a magnetic circuit formed from a permanent magnet with an air gap in the magnet to obtain the production of a magnetic field across the gap, a thin planar armature disposed in said air gap and having a thin electrical conductor disposed on said member at right angles to the magnetic field to obtain a movement of the member through the magnetic field in a direction substantially perpendicular to the field in accordance with the flow of current through the conductor, means operatively coupled to the armature and disposed relative to the medium for producing a mark on said paper in accordance with the movements of the armature in the direction perpendicular to the magnetic field, and means operatively coupled to the conductor for producing a flow of current through the conductor with characteristics, at each instant, representing the mark to be produced by the marking means on the medium.

Claim 15

A transducer for use in a facsimile system including a medium upon which data is to be reproduced, including: a magnetic circuit formed from a permanent magnet with an air gap in the magnet to obtain the production of a magnetic field across the gap, a thin planar armature disposed in said air gap and having a thin electrical conductor disposed on said member at right angles to the magnetic field to obtain a movement of the member through the magnetic field in a direction substantially perpendicular to the field in accordance with the flow of current through the conductor, means operatively coupled to the armature and disposed relative to the medium for producing a mark on said paper in accordance with the movements of the armature in the direction perpendicular to the magnetic field, and means operatively coupled to the conductor for producing a flow of current through the conductor with characteristics, at each instant, representing the mark to be produced by the marking means on the medium.

Claim 16

The transducer set forth in claim 10, including, means operatively coupled to the magnetic circuit and the armature for obtaining a movement of the magnetic circuit and the armature linearly across the medium to obtain a recordiNg of information by the marking means at different positions on the medium.

Claim 17

The combination set forth in claim 10 wherein the marking means is disposed at all times against the medium and wherein the air gap in the magnet defines a pair of opposite poles respectively having north and south polarities.

Claim 18

The combination set forth in claim 12 wherein the thin planar armature is defined by first and second planar surfaces and wherein portions of the thin electrical conductor are included on the first and second planar surfaces.

Claim 19

In combination for use in a facsimile system for writing on the surface of a medium, a magnetic circuit having a pair of magnetic members positioned to define a pair of air gaps and to produce a magnetic field across said air gaps, a pair of electrically conductive diaphragms secured to said magnetic members, a thin planar armature resiliently supported by said diaphragms in said air gaps for movement in a direction substantially perpendicular to the magnetic fields in the air gaps, a thin electrical conductor included on said armature and electrically interconnected with said diaphragms for producing a movement of the diaphragms in the direction perpendicular to the magnetic fields in accordance with the characteristics of the current flowing through the armature, at least a portion of said conductor being disposed in said magnetic field at substantially right angles to the magnetic field, a stylus on at least one of said diaphragms for scanning across said medium for recording marks on said medium, and means electrically coupled to said diaphragms for obtaining a flow of current through said diaphragms and said conductor with characteristics, at each instant, representing marks to be recorded on the medium.

Claim 20

In combination for use in a facsimile system for writing on the surface of a medium, a magnetic circuit having a pair of magnetic members positioned to define a pair of air gaps and to produce a magnetic field across said air gaps, a pair of electrically conductive diaphragms secured to said magnetic members, a thin planar armature resiliently supported by said diaphragms in said air gaps for movement in a direction substantially perpendicular to the magnetic fields in the air gaps, a thin electrical conductor included on said armature and electrically interconnected with said diaphragms for producing a movement of the diaphragms in the direction perpendicular to the magnetic fields in accordance with the characteristics of the current flowing through the armature, at least a portion of said conductor being disposed in said magnetic field at substantially right angles to the magnetic field, a stylus on at least one of said diaphragms for scanning across said medium for recording marks on said medium, and means electrically coupled to said diaphragms for obtaining a flow of current through said diaphragms and said conductor with characteristics, at each instant, representing marks to be recorded on the medium.

Claim 21

The combination set forth in claim 14 wherein the magnetic members in the magnetic circuit are positioned to define a pair of plane-aligned air gaps and to produce a substantially constant magnetic field across the air gaps.

Claim 22

A facsimile unit for reproducing, on a medium at a first position, a copy of the contents of a document at a second position by the transmission of information through telephone lines where first and second telephone handsets are disposed at first and second opposite ends of the telephone lines and are connected to the telephone lines to provide a transducing action between the production of acoustical signals and the generation of electrical signals, including, first rotatable support means at the second position, first motor means operatively interconnected with said first support means for rotating said first support means, a first power source operatively coupled to said motor and having particular frequency characteristics for energizing said motor means in accordance with the frequency characteristics of the power source, first transducer means mounted on said first support means for scanning the surface of said document and producing a signal having characteristics dependent upon the data on said document, means operatively connected to the first transducer means and to the first telephone handset for obtaining a transmission through the first telephone handset and the telephone lines of the signals from the second position to the first position, second rotatable support means at the first position, second motor means operatively coupled to the second support means for rotating the second support means, a second power source operatively coupled to said second motor and having particular frequency characteristics for energizing the second motor in accordance with the frequency characteristics of the second power source, second transducer means mounted on said second support means and coupled to the second telephone handset and responsive to said signal passing through the telephone lines and the second telephone handset for scanning the medium and producing marks on the medium in accordance with the characteristics Of said signal, means for producing a reference signal indicative of the angular position of said first transducer means, and means responsive to said reference signal and to the position of said second transducer means for obtaining variations in the frequency from said second power source to vary the speed at which said second motor means drives said second support means.

Claim 23

A facsimile unit for reproducing, on a medium at a first position, a copy of the contents of a document at a second position by the transmission of information through telephone lines where first and second telephone handsets are disposed at first and second opposite ends of the telephone lines and are connected to the telephone lines to provide a transducing action between the production of acoustical signals and the generation of electrical signals, including, first rotatable support means at the second position, first motor means operatively interconnected with said first support means for rotating said first support means, a first power source operatively coupled to said motor and having particular frequency characteristics for energizing said motor means in accordance with the frequency characteristics of the power source, first transducer means mounted on said first support means for scanning the surface of said document and producing a signal having characteristics dependent upon the data on said document, means operatively connected to the first transducer means and to the first telephone handset for obtaining a transmission through the first telephone handset and the telephone lines of the signals from the second position to the first position, second rotatable support means at the first position, second motor means operatively coupled to the second support means for rotating the second support means, a second power source operatively coupled to said second motor and having particular frequency characteristics for energizing the second motor in accordance with the frequency characteristics of the second power source, second transducer means mounted on said second support means and coupled to the second telephone handset and responsive to said signal passing through the telephone lines and the second telephone handset for scanning the medium and producing marks on the medium in accordance with the characteristics Of said signal, means for producing a reference signal indicative of the angular position of said first transducer means, and means responsive to said reference signal and to the position of said second transducer means for obtaining variations in the frequency from said second power source to vary the speed at which said second motor means drives said second support means.

Claim 24

A facsimile system for use with telephone lines having a limited pass band to provide a recording of information on a medium in accordance with information on a document where first and second telephone handsets are disposed at first and second opposite ends of the telephone lines and are connected to the telephone lines to provide a transducing action between the production of acoustical signals and the generation of electrical signals, including: a first transceiver disposed at the first end of the telephone lines, a second transceiver disposed at the second end of the telephone line, support means in said first transceiver for retaining said document in position, transducer means in said first transceiver for scanning said document and generating a facsimile signal having characteristics dependent upon the contents of said document and within the limited pass band of said telephone lines, motor means in said first transceiver and interconnected with one of said support and transducer means in said first transceiver for producing movement between the transducer means and said document, control means in said first transceiver for generating a control signal having a particular frequency, said control means being interconnected with said motor means in said first transceiver to regulate the speed of said motor in accordance with the frequency of said control signal, means in said first transceiver and interconnected with said control means and said transducer means and coupled through the first telephone handset to said telephone lines for coupling said facsimile signal and said control signal into said telephone lines, support means in said second transceiver for retaining the medium in position, second transducer means in said second transceiver for scanning said medium, said second transducer means being responsive to said facsimile signal to make a mark on said medium in accordance with the characteristics of said facsimile signal, motor means in said second transceiver and interconnected with one of said support and transducer means in said second transceiver for producing movement between the second transducer and said medium to obtain a scanning of the medium by the second transducer in the second transceiver, coupling means in said second transceiver and coupled through said second telephone handset to said telephone lines for receiving said facsimile and control signals from said telephone lines, control means in said second transceiver to generate a control signal in accordance with the control signal in the telephone lines and interconnected with said motor means in said second transceiver to control the speed of said motor means in said second transceiver in response to said control signal for a synchronization in the speeds of the motor means in the first and second transceivers, and means interconnecting said coupling means in said second transceiver with said second transducer in said second transceiver for coupling said facsimile signal into said second transducer to obtain a marking of the medium by said second transducer in accordance with the characteristics of said facsimile signal.

Claim 25

A facsimile system for use with telephone lines having a limited pass band to provide a recording of information on a medium in accordance with information on a document where first and second telephone handsets are disposed at first and second opposite ends of the telephone lines and are connected to the telephone lines to provide a transducing action between the production of acoustical signals and the generation of electrical signals, including: a first transceiver disposed at the first end of the telephone lines, a second transceiver disposed at the second end of the telephone line, support means in said first transceiver for retaining said document in position, transducer means in said first transceiver for scanning said document and generating a facsimile signal having characteristics dependent upon the contents of said document and within the limited pass band of said telephone lines, motor means in said first transceiver and interconnected with one of said support and transducer means in said first transceiver for producing movement between the transducer means and said document, control means in said first transceiver for generating a control signal having a particular frequency, said control means being interconnected with said motor means in said first transceiver to regulate the speed of said motor in accordance with the frequency of said control signal, means in said first transceiver and interconnected with said control means and said transducer means and coupled through the first telephone handset to said telephone lines for coupling said facsimile signal and said control signal into said telephone lines, support means in said second transceiver for retaining the medium in position, second transducer means in said second transceiver for scanning said medium, said second transducer means being responsive to said facsimile signal to make a mark on said medium in accordance with the characteristics of said facsimile signal, motor means in said second transceiver and interconnected with one of said support and transducer means in said second transceiver for producing movement between the second transducer and said medium to obtain a scanning of the medium by the second transducer in the second transceiver, coupling means in said second transceiver and coupled through said second telephone handset to said telephone lines for receiving said facsimile and control signals from said telephone lines, control means in said second transceiver to generate a control signal in accordance with the control signal in the telephone lines and interconnected with said motor means in said second transceiver to control the speed of said motor means in said second transceiver in response to said control signal for a synchronization in the speeds of the motor means in the first and second transceivers, and means interconnecting said coupling means in said second transceiver with said second transducer in said second transceiver for coupling said facsimile signal into said second transducer to obtain a marking of the medium by said second transducer in accordance with the characteristics of said facsimile signal.

Claim 26

In combination for reproducing on a medium at a first position the contents of a document at a second position displaced from the first position by the transmission of information from the second position to the first position through telephone lines, a platen having an arcuate configuration in a first direction and having a linear configuration in a second direction substantially perpendicular to the first directiOn, support means, means for obtaining a relative rotation of the support means in the first direction past the platen, means for obtaining an advance of the medium relative to the support means in the second direction during the relative rotation of the support means past the platen, means for obtaining a transmission from the second position to the first position of signals having characteristics dependent at each instant upon the contents of the document at individual positions on the document, a magnetic circuit disposed on the support means and including an air gap and further including means for producing a magnetic field across the air gap, a thin planar member extending into the air gap, a thin planar conductor disposed on the thin planar member and disposed within the air gap for providing a movement of the thin planar member into and out of the air gap in a direction substantially perpendicular to the air gap in accordance with the characteristics of the current flowing through the air gap, means responsive to the signals received at the first position and operatively coupled to the conductor for producing a flow of current through the conductor in accordance with the characteristics of the signals, and marking means operatively coupled to the thin planar member and disposed relative to the medium for producing marks on the medium in accordance with the variations in the movements of the member at each instant.

Claim 27

In combination for reproducing on a medium at a first position the contents of a document at a second position displaced from the first position by the transmission of information from the second position to the first position through telephone lines, a platen having an arcuate configuration in a first direction and having a linear configuration in a second direction substantially perpendicular to the first directiOn, support means, means for obtaining a relative rotation of the support means in the first direction past the platen, means for obtaining an advance of the medium relative to the support means in the second direction during the relative rotation of the support means past the platen, means for obtaining a transmission from the second position to the first position of signals having characteristics dependent at each instant upon the contents of the document at individual positions on the document, a magnetic circuit disposed on the support means and including an air gap and further including means for producing a magnetic field across the air gap, a thin planar member extending into the air gap, a thin planar conductor disposed on the thin planar member and disposed within the air gap for providing a movement of the thin planar member into and out of the air gap in a direction substantially perpendicular to the air gap in accordance with the characteristics of the current flowing through the air gap, means responsive to the signals received at the first position and operatively coupled to the conductor for producing a flow of current through the conductor in accordance with the characteristics of the signals, and marking means operatively coupled to the thin planar member and disposed relative to the medium for producing marks on the medium in accordance with the variations in the movements of the member at each instant.

Claim 28

The combination set forth in claim 18, including: control means responsive to the signals received at the first position for varying the speed of the support means relative to the platen at each instant in accordance with the characteristics of the received signals at that instant to obtain an undistorted reproduction on the medium of the contents of the document.

Claim 29

In combination in a facsimile unit for providing a transducing action between the contents of a document and a signal having characteristics dependent upon the contents of such document, rotatable support means, means operatively coupled to the support means for rotating the support means, means for holding the document in an arcuate configuration, first transducer means mounted on said support means and disposed relative to said document-holding means for scanning said document during the rotation of said support means to produce at each instant the signal having characteristics dependent upon the contents of said document, second transducer means mounted on said support means and disposed relative to said document-holding means for scanning said document during the rotation of said support means to convert the signal to the production of the contents on the document, and switching means operatively coupled to the first and second transducer means for selectively activating the first transducer means at first particular times and for selectively activating the second transducer means at second particular times different from the first particular times, wherein the second transducer means includes a magnetic circuit having a planar air gap to define first and second magnetic poles at opposite ends of the air gap and to produce a magnetic field across the air gap, an armature comprising a thin planar member having a thickness less than the width of said air gap and disposed in the air gap for movement through the air gap in the planar direction, at least one thin conductor included on the thin planar member in a plane substantially perpendicular to the magnetic field across the air gap to obtain the imposition of a translating force on the armature, a stylus operatively coupled to the armature for movement with the armature and disposed relative to the document for controlled movement into engagement with the document in accordance with the movement of the armature, and means operatively coupled to the thin conductor for obtaining a controlled flow of current through the conducTor with characteristics representing information for recording on the medium to obtain movements of the armature in the perpendicular direction in accordance with the characteristics of the current.

Claim 30

In combination in a facsimile unit for providing a transducing action between the contents of a document and a signal having characteristics dependent upon the contents of such document, rotatable support means, means operatively coupled to the support means for rotating the support means, means for holding the document in an arcuate configuration, first transducer means mounted on said support means and disposed relative to said document-holding means for scanning said document during the rotation of said support means to produce at each instant the signal having characteristics dependent upon the contents of said document, second transducer means mounted on said support means and disposed relative to said document-holding means for scanning said document during the rotation of said support means to convert the signal to the production of the contents on the document, and switching means operatively coupled to the first and second transducer means for selectively activating the first transducer means at first particular times and for selectively activating the second transducer means at second particular times different from the first particular times, wherein the second transducer means includes a magnetic circuit having a planar air gap to define first and second magnetic poles at opposite ends of the air gap and to produce a magnetic field across the air gap, an armature comprising a thin planar member having a thickness less than the width of said air gap and disposed in the air gap for movement through the air gap in the planar direction, at least one thin conductor included on the thin planar member in a plane substantially perpendicular to the magnetic field across the air gap to obtain the imposition of a translating force on the armature, a stylus operatively coupled to the armature for movement with the armature and disposed relative to the document for controlled movement into engagement with the document in accordance with the movement of the armature, and means operatively coupled to the thin conductor for obtaining a controlled flow of current through the conducTor with characteristics representing information for recording on the medium to obtain movements of the armature in the perpendicular direction in accordance with the characteristics of the current.

Claim 31

In combination in a facsimile unit for providing a transducing action between the contents of a document and a signal having characteristics dependent upon the contents of such document, rotatable support means, means operatively coupled to the support means for rotating the support means, means for holding the document in an arcuate configuration, first transducer means mounted on said support means and disposed relative to said document-holding means for scanning said document during the rotation of said support means to produce at each instant the signal having characteristics dependent upon the contents of said document, second transducer means mounted on said support means and disposed relative to said document-holding means for scanning said document during the rotation of said support means to convert the signal to the production of the contents on the document, and switching means operatively coupled to the first and second transducer means for selectively activating the first transducer means at first particular times and for selectively activating the second transducer means at second particular times different from the first particular times wherein the first transducer means is optical and the second transducer means is electromagnetic and wherein means are provided for obtaining a movement of the document in an axial direction relative to the support means during the rotation of the support means to obtain a scan of the document, wherein the first transducer means includes a light source, optical means disposed for rotation with the support means relative to the document-holding means and disposed to receive light from the light source and to direct the light toward the document-holding means for the passage of light from the document on the document-holding means with characteristics in accordance with the contents on the document, means disposed relative to the light passing from the document to receive such light and to produce signals having characteristics in accordance with the characteristics of the received light, the second transducer means including a magnetic circuit having a planar air gap to define first and second magnetic poles at opposite ends of the air gap and to produce a magnetic field across the air gap, an armature comprising a thin planar member having a thickness less than the width of said air gap and disposed in the air gap for movement through the air gap in the planar direction, at least one thin conductor included on the thin planar member in a plane substantially perpendicular to the magnetic field across the air gap to obtain the imposition of a translating force on the armature, a stylus operatively coupled to the armature for movement with the armature and disposed in contiguous relationship to the document for controlled movement into engagement with the document in accordance with the movements of the armature, and means operatively coupled to the thin conductor for obtaining a controlled flow of current through the conductor with characteristics representing information for recording on the medium to obtain movements of the armature in the perpendicular direction in accordance with the characteristics of the current.

Claim 32

In combination in a facsimile unit for providing a transducing action between the contents of a document and a signal having characteristics dependent upon the contents of such document, rotatable support means, means operatively coupled to the support means for rotating the support means, means for holding the document in an arcuate configuration, first transducer means mounted on said support means and disposed relative to said document-holding means for scanning said document during the rotation of said support means to produce at each instant the signal having characteristics dependent upon the contents of said document, second transducer means mounted on said support means and disposed relative to said document-holding means for scanning said document during the rotation of said support means to convert the signal to the production of the contents on the document, and switching means operatively coupled to the first and second transducer means for selectively activating the first transducer means at first particular times and for selectively activating the second transducer means at second particular times different from the first particular times wherein the first transducer means is optical and the second transducer means is electromagnetic and wherein means are provided for obtaining a movement of the document in an axial direction relative to the support means during the rotation of the support means to obtain a scan of the document, wherein the first transducer means includes a light source, optical means disposed for rotation with the support means relative to the document-holding means and disposed to receive light from the light source and to direct the light toward the document-holding means for the passage of light from the document on the document-holding means with characteristics in accordance with the contents on the document, means disposed relative to the light passing from the document to receive such light and to produce signals having characteristics in accordance with the characteristics of the received light, the second transducer means including a magnetic circuit having a planar air gap to define first and second magnetic poles at opposite ends of the air gap and to produce a magnetic field across the air gap, an armature comprising a thin planar member having a thickness less than the width of said air gap and disposed in the air gap for movement through the air gap in the planar direction, at least one thin conductor included on the thin planar member in a plane substantially perpendicular to the magnetic field across the air gap to obtain the imposition of a translating force on the armature, a stylus operatively coupled to the armature for movement with the armature and disposed in contiguous relationship to the document for controlled movement into engagement with the document in accordance with the movements of the armature, and means operatively coupled to the thin conductor for obtaining a controlled flow of current through the conductor with characteristics representing information for recording on the medium to obtain movements of the armature in the perpendicular direction in accordance with the characteristics of the current.

Claim 33

The combination set forth in claim 21, wherein the first transducer also includes second optical means disposed for rotation with the turntable relative to the document-holding means and disposed to receive light from the light source and to direct the light toward the document-holding means for passage of the light from the document on the document-holding means with characteristics in accordance with the contents on the document, the first and second optical means being angularly displaced from one another in the first direction to provide for a direction of light by only one of the first and second optical means toward the document at each instant, and means disposed relative to the first and second optical means to block the passage of light at each instant to the light-receiving means from the particular one of the first and second optical means not directing light toward the document.

Claim 34

In combination, a magnetic circuit having a thin air gap to define opposite magnetic pole faces across the air gap, said magnetic circuit producing flux across said air gap, a thin sheet-like member disposed in said air gap with the member disposed in a direction transverse to the flux between the magnetic poles for movement of the member in the transverse direction, said member comprising a thin electrically conductive circuit with at least a portion of the circuit positioned in the transverse direction between the poles so that current flow through said circuit will impose a force on said member, and said circuit adapted for connection to means for obtaining a flow of current through the circuit to obtain a movement of the thin member in the transverse direction in accordance with the flow of current.

Claim 35

In combination, a magnetic circuit having a thin air gap to define opposite magnetic pole faces across the air gap, said magnetic circuit producing flux across said air gap, a thin sheet-like member disposed in said air gap with the member disposed in a direction transverse to the flux between the magnetic poles for movement of the member in the transverse direction, said member comprising a thin electrically conductive circuit with at least a portion of the circuit positioned in the transverse direction between the poles so that current flow through said circuit will impose a force on said member, and said circuit adapted for connection to means for obtaining a flow of current through the circuit to obtain a movement of the thin member in the transverse direction in accordance with the flow of current.

Claim 36

The combination of claim 23 with the thin sheet-like member being planar and the pole faces being planar.

Claim 37

The combination of claim 23 with the thin electrically conductive circuit comprising a continuous winding that is wound from an outer loop to successively smaller inner loops, said magnetic circuit producing magnetic flux in a first direction that interacts with the current in first segments of the winding loops carrying current in one direction and producing magnetic flux in a second direction which is opposite to said magnetic flux in said first direction, with the flux in said second direction interacting with the current in second segments of the loops, with said second segments carrying current in a direction opposite to said one direction so that the forces from the currents in the first and second segments will reinforce one another to move said member relative to said flux.

Claim 38

The combination of claim 25 with the thin electrically conductive circuit comprising two continuous windings that are wound from an outer loop to successively smaller inner loops with the two smallest loops in each winding being electrically connected, said windings being placed facing one another and wound so that the current flows in the windings in the same direction.