Picture image recording device

Claim 2

An information signal recording apparatus comprising: (A) a chamber for accommodating therein a recording medium which is disc-shaped; (B) openable cover means for closing said chamber; (C) recording head means for recording information signals on said recording medium, said head means having a predetermined reset position which is an outer position of said medium and being movable along a recording surface of the medium to change the recording position on the recording surface of the medium; (D) moving means for moving said head means along the recording surface of the medium to change the recording position of the head means on the recording surface of the medium; (E) detection means for producing a characteristic signal when said head means is aligned with a portion on which no information signal is recorded on the recording surface of the medium; (F) control means for causing said moving means to move said head means until said detection means produces said characteristic signal; (G) inhibit means for inhibiting signal recording by said head means until said detection means produces said characteristic signal; (H) reset means for resetting said head means to said predetermined reset position along the recording surface of said recording medium; and (I) enabling means for enabling said reset means in response to operation of said cover means.

Claim 3

An apparatus according to claim 1, wherein said detecting means is arranged to generate said characteristic signal when a level of a signal reproduced from said recording surface is higher than a predetermined level.

Claim 4

An apparatus according to claim 1, wherein said reset means includes a ratchet mechanism.

Claim 5

An apparatus according to claim 3, wherein said enabling means is arranged to set said ratchet mechanism to its initial position in response to operation of said cover means.

Claim 6

An image recording apparatus, comprising: (A) recording or reproducing means for recording or reproducing an image signal at a recording or reproducing position on a recording medium, said recording or reproducing position of said recording or reproducing means being changeable along a surface of said recording medium; (B) drive means for rotating said recording or reproducing means and said recording medium relatively to each other; (C) loading and unloading means for loading and unloading said recording medium to and from the apparatus; (D) reset means for resetting the recording or reproducing position of said recording or reproducing means to an initial position for preparation of recording on said recording medium in a direction along a surface of said recording medium, in association with the loading and unloading operation of said loading and unloading means; (E) detecting means for detecting presence or absence of record at said recording or reproducing position within a predetermined range on said recording medium from a reproduced output of said recording or reproducing means at the time of driving of said drive means; (F) automatic setting means for sequentially shifting the recording or reproducing position of said recording or reproducing means from said initial position to a plurality of previously set recording positions within said predetermined range on the basis of an output of said detecting means and for automatically setting said recording or reproducing position at a presumed recording position where the absence of the record has been detected; and (G) control means for stopping at least the operation of said drive means when the presence of the record has been detected at the respective presumed recording positions within said predetermined range.

Claim 7

An image recording apparatus, comprising: (A) recording or reproducing means for recording or reproducing an image signal at a recording or reproducing position on a recording medium, said recording or reproducing position of said recording or reproducing means being changeable along a surface of said recording medium; (B) drive means for rotating said recording or reproducing means and said recording medium relatively to each other; (C) loading and unloading means for loading and unloading said recording medium to and from the apparatus; (D) reset means for resetting the recording or reproducing position of said recording or reproducing means to an initial position for preparation of recording on said recording medium in a direction along a surface of said recording medium, in association with the loading and unloading operation of said loading and unloading means; (E) detecting means for detecting presence or absence of record at said recording or reproducing position within a predetermined range on said recording medium from a reproduced output of said recording or reproducing means at the time of driving of said drive means; (F) automatic setting means for sequentially shifting the recording or reproducing position of said recording or reproducing means from said initial position to a plurality of previously set recording positions within said predetermined range on the basis of an output of said detecting means and for automatically setting said recording or reproducing position at a presumed recording position where the absence of the record has been detected; and (G) control means for stopping at least the operation of said drive means when the presence of the record has been detected at the respective presumed recording positions within said predetermined range.

Claim 8

An apparatus according to claim 5, wherein said detecting means is arranged to effect detecting operation by discriminating the output of said recording or reproducing means.

Claim 9

An apparatus according to claim 6, wherein said detecting means is arranged to effect detecting operation by discriminating the output of said recording or reproducing means.

Claim 10

An apparatus according to claim 5, wherein said reset means includes a ratchet mechanism.

Claim 11

An apparatus according to claim 5, wherein said control means is arranged to stop the operation of said drive means by interrupting an electrical power supply for said apparatus.

Claim 12

An apparatus according to claim 5, and further comprising image pick-up means for picking up an image and for generating said image signal.

Claim 13

An image recording apparatus, comprising: (A) a recording or reproducing head for recording or reproducing an image signal on a recording medium at a recording or reproducing position on the medium, said recording or reproducing position of said recording or reproducing head being changeable; (B) drive means for driving said recording medium relative to said recording or reproducing head; (C) detecting means for detecting presence or absence of record at said recording or reproducing position within a predetermined range on said recording medium from a reproduced output of said recording or reproducing head at the time of operation of said drive means; (D) a recording circuit for feeding an image signal to said recording or reproducing head in an image recording mode; (E) means for connecting said recording or reproducing head to said recording circuit in said recording mode; and (F) control means for controlling said connecting means on the basis of an output of said detecting means generated by said recording or reproducing head at the time of image recording, for inhibiting the image recording effected by said recording or reproducing head, irrespective of said recording mode, when the presence of record has been detected and for preventing the operation of said drive means, without discharging said recording medium from the apparatus, when the presence of record within each presumed recording position within said predetermined range has been detected.

Claim 14

An image recording apparatus, comprising: (A) a recording or reproducing head for recording or reproducing an image signal on a recording medium at a recording or reproducing position on the medium, said recording or reproducing position of said recording or reproducing head being changeable; (B) drive means for driving said recording medium relative to said recording or reproducing head; (C) detecting means for detecting presence or absence of record at said recording or reproducing position within a predetermined range on said recording medium from a reproduced output of said recording or reproducing head at the time of operation of said drive means; (D) a recording circuit for feeding an image signal to said recording or reproducing head in an image recording mode; (E) means for connecting said recording or reproducing head to said recording circuit in said recording mode; and (F) control means for controlling said connecting means on the basis of an output of said detecting means generated by said recording or reproducing head at the time of image recording, for inhibiting the image recording effected by said recording or reproducing head, irrespective of said recording mode, when the presence of record has been detected and for preventing the operation of said drive means, without discharging said recording medium from the apparatus, when the presence of record within each presumed recording position within said predetermined range has been detected.

Claim 15

An apparatus according to claim 11, wherein said recording medium is a disc-shaped medium.

Claim 16

An apparatus according to claim 11, wherein said detecting means is arranged to effect detecting operation by discriminating the output of said recording or reproducing head.

Claim 17

An apparatus according to claim 11, wherein said control means is arranged to prevent the operation of said drive means by interrupting an electrical power supply for said apparatus.

Claim 18

An apparatus according to claim 11, wherein said connecting means comprises a recording gate.

Claim 19

An apparatus according to claim 11, and further comprising image pick-up means for picking up an image and for generating said image signal.

Claim 20

An image recording apparatus, comprising: recording or reproducing means for recording or reproducing an image signal in which a recording or reproducing position of said recording or reproducing means relative to a recording medium is changeable; drive means for driving said recording medium relative to said reproducing means; detecting means for detecting presence or absence of record at said recording or reproducing position within a predetermined range on said recording medium from a reproduced output of said recording or reproducing means at the time of driving of said drive means; automatic setting means for sequentially shifting the recording or reproducing position of said recording or reproducing means from said initial position to a plurality of previously set recording positions within said predetermined range on the basis of an output of said detecting means and for automatically setting said recording or reproducing position at a presumed recording position where the absence of the record has been detected; and control means for stopping at least the operation of said drive means when the presence of the record has been detected at the respective presumed recording positions within said predetermined range.

Claim 21

An image recording apparatus, comprising: recording or reproducing means for recording or reproducing an image signal in which a recording or reproducing position of said recording or reproducing means relative to a recording medium is changeable; drive means for driving said recording medium relative to said reproducing means; detecting means for detecting presence or absence of record at said recording or reproducing position within a predetermined range on said recording medium from a reproduced output of said recording or reproducing means at the time of driving of said drive means; automatic setting means for sequentially shifting the recording or reproducing position of said recording or reproducing means from said initial position to a plurality of previously set recording positions within said predetermined range on the basis of an output of said detecting means and for automatically setting said recording or reproducing position at a presumed recording position where the absence of the record has been detected; and control means for stopping at least the operation of said drive means when the presence of the record has been detected at the respective presumed recording positions within said predetermined range.

Claim 22

An apparatus according to claim 17, wherein said recording medium is a disc-shaped medium.

Claim 23

An apparatus according to claim 17, wherein said control means is arranged to stop the operation of said drive means by interrupting an electrical power supply for said apparatus.

Claim 24

An apparatus according to claim 17, and further comprising image pick-up means for picking up an image and for generating said image signal.

Claim 25

An image recording apparatus, comprising: recording or reproducing means for recording or reproducing an image signal in which a recording or reproducing position of said recording or reproducing means relative to a recording medium is changeable; drive means for rotating said recording medium relative to said recording or reproducing means; detecting means for detecting presence or absence of record at said recording or reproducing position within a predetermined range on said recording medium from a reproduced output of said recording or reproducing head at the time of operation of said drive means; and control means for controlling said recording or reproducing means on the basis of an output of said detecting means for inhibiting the image recording affected by said recording or reproducing means, irrespective of said recording mode, when the presence of record has been detected and for preventing the operation of said drive means, without discharging said recording medium from the apparatus, when the presence of record within each presumed recording position within said predetermined range has been detected.

Claim 26

An image recording apparatus, comprising: recording or reproducing means for recording or reproducing an image signal in which a recording or reproducing position of said recording or reproducing means relative to a recording medium is changeable; drive means for rotating said recording medium relative to said recording or reproducing means; detecting means for detecting presence or absence of record at said recording or reproducing position within a predetermined range on said recording medium from a reproduced output of said recording or reproducing head at the time of operation of said drive means; and control means for controlling said recording or reproducing means on the basis of an output of said detecting means for inhibiting the image recording affected by said recording or reproducing means, irrespective of said recording mode, when the presence of record has been detected and for preventing the operation of said drive means, without discharging said recording medium from the apparatus, when the presence of record within each presumed recording position within said predetermined range has been detected.

Claim 27

An apparatus according to claim 21, wherein said recording medium is disc-shaped medium.

Claim 28

An apparatus according to claim 21, wherein said detecting means is arranged to effect detecting operation by discriminating the output of said recording or reproducing means.

Claim 29

An apparatus according to claim 21, wherein said control means is arranged to prevent the operation of said drive means by interrupting an electrical power supply for said apparatus.

Claim 30

An apparatus according to claim 21, and further comprising image pick-up means for picking up an image and for generating said image signal.