Authorization type of control system

Claim 2

An authorization type of control system comprising a data sensor having a plurality of data sensing positions, first circuitry for generating an output signal as a function of data sensed by each of said data positions, second circuitry responsive to a request signal to actuate said first circuitry to sense each of said data positions, third circuitry for producing an authorization signal in response to output signals from said first circuitry indicating a predetermined data item at each of said data positions, and fourth circuitry responsive to an incorrect output signal from said first circuitry from any one of said data positions for preventing generation of said authorization signal by said third circuitry for a predetermined period of time after termination of said request signal.

Claim 3

The system as claimed in claim 1 and further including a relay, means responsive to an authorization request for applying an enabling voltage to said relay and wherein said fourth circuitry includes means for completing a circuit to operatively energize said relay, and means for maintaining said relay operatively energized for said predetermined period of time after termination of said authorization request.

Claim 4

An authorization type of control system comprising a data sensor having a plurality of data sensing positions, first circuitry for generating an output signal as a function of data sensed by each of said data positions, second circuitry responsive to a request signal to actuate said first circuitry to sense each of said data positions, third circuitry for producing an authorization signal in response to output signals from said first circuitry indicating a predetermined data item at each of said data positions, and fourth circuitry responsive to an incorrect output signal from said first circuitry from any one of said data positions for preventing generation of said authorization signal by said third circuitry for a predetermined period of time after termination of said request signal, said fourth circuitry including a capacitor, means responsive to a predetermined charge on said capacitor for preventing generation of said authorization signal and means responsive to an incorrect output signal from said first circuitry for modifying the charge on said capacitor.

Claim 5

An authorization type of control system comprising a data sensor having a plurality of data sensing positions, first circuitry for generating an output signal as a function of data sensed by each of said data positions, second circuitry responsive to a request signal to actuate said first circuitry to sense each of said data positions, third circuitry for producing an authorization signal in response to output signals from said first circuitry indicating a predetermined data item at each of said data positions, and fourth circuitry responsive to an incorrect output signal from said first circuitry from any one of said data positions for preventing generation of said authorization signal by said third circuitry for a predetermined period of time after termination of said request signal, said fourth circuitry including a capacitor, means responsive to a predetermined charge on said capacitor for preventing generation of said authorization signal and means responsive to an incorrect output signal from said first circuitry for modifying the charge on said capacitor.

Claim 6

The system as claimed in claim 3 wherein said capacitor charge modifying means includes a relay having a coil connected to said third circuitry, a set of contacts controlled by said coil and circuitry connected between said set of contacts and said capacitor for placing said predetermined charge on said capacitor.

Claim 7

The system as claimed in claim 4 wherein said third circuitry includes circuitry connected to said coil for generating said authorization signal when said coil is placed in a first operative state in response to signals from said first circuitry, and said fourth circuitry includes circuitry connected to said coil for inhibiting generation of said authorization signal when said coil is placed in a second operative state in response to signals from said first circuitry.

Claim 8

The sysTem as claimed in claim 1 wherein said data sensor is a card reader having a sensing area for receiving a card and a data sensor is disposed at each of said data sensing positions adjacent said sensing area.

Claim 9

The system as claimed in claim 6 and further including means responsive to disposition of a card in said sensing area for generating said request signal.

Claim 10

The system as claimed in claim 7 wherein said means for generating said request signal includes a card responsive switch and circuitry including a capacitor connected to said switch to generate a signal for actuating all of said data sensors.

Claim 11

The system as claimed in claim 6 and further including a data storage element corresponding to each data sensor, means responsive to disposition of a card in said sensing area for applying an enabling signal to each said data storage element, and circuitry coupled between each said data sensor and the corresponding data storage element for changing the condition of said data storage elements as a function of the data sensed by each of said data sensors.

Claim 12

The system as claimed in claim 6 wherein each said data sensor includes a primary winding and a secondary winding and said second circuitry includes means for applying an energizing signal to each said primary winding to induce signals in the corresponding secondary windings as a function of data encoded on said card.

Claim 13

The system as claimed in claim 1 wherein said fourth circuitry includes logic for combining signals from a plurality of data sensing positions for preventing generation of said authorization signal.

Claim 14

The system as claimed in claim 11 wherein said logic includes at least one manually operable switch.

Claim 15

The system as claimed in claim 12 wherein said data sensor is a card reader having a sensing area for receiving a card and a data sensor is disposed at each of said data sensing positions adjacent said sensing area, each said data sensor including a primary winding and a secondary winding, said second circuitry includes means for applying an energizing signal to each said primary winding to induce signals in the corresponding secondary windings as a function of data encoded on said card, and further including means responsive to disposition of a card in said sensing area for generating said request signal, including a card responsive switch and circuitry including a capacitor connected to said switch to generate a signal for actuating all of said data sensors.

Claim 16

The system as claimed in claim 13 and further including a data storage element corresponding to each data sensor, means responsive to disposition of a card in said sensing area for applying an enabling signal to each said data storage element, and circuitry coupled between each said data sensor and the corresponding data storage element for changing the condition of said data storage elements as a function of the data sensed by each of said data sensors.

Claim 17

The system as claimed in claim 14 and further including a relay, means responsive to an authorization request for applying an enabling voltage to said relay, and wherein said fourth circuitry includes means for completing a circuit to operatively energize said relay, and means for maintaining said relay operatively energized for said predetermined period of time after termination of said authorization request.

Claim 18

An authorization type of control system comprising a card reader having a sensing area for receiving a card and a plurality of data sensors disposed adjacent said sensing area, each said data sensor including a primary winding and a secondary winding, means including a card responsive switch for generating a request signal in response to disposition of a card in said sensing area, circuitry including a capacitor connected to said card responsive switch for applying an energizing signal to each said primary winding to induce signals in the corresponding secondary windings as a function of data encoded on said card, a data storage element correspondIng to each data sensor, means for applying an enabling signal to each said data storage element in response to disposition of a card in said sensing area, circuitry coupled between each said data sensor secondary winding and the corresponding data storage element for changing the condition of said data storage elements as a function of the data sensed by each of said data sensors, a relay, circuitry for producing an authorization signal in response to output signals from said data storage elements indicating a predetermined data item at each of said data positions including means responsive to an authorization request for applying an enabling voltage to said relay, and circuitry responsive to an incorrect output signal from any one of said data storage elements for preventing generation of said authorization signal for a predetermined period of time after termination of said request signal, said last named circuitry including logic means including at least one manually operable switch for combining signals from a plurality of data storage elements for completing a circuit to operatively energize said relay, for preventing generation of said authorization signal, a capacitor, means responsive to a predetermined charge on said capacitor for maintaining said relay operatively energized for said predetermined period of time after termination of said authorization request, and means responsive to an output signal from said logic means for modifying the charge on said capacitor.

Claim 19

An authorization type of control system comprising a card reader having a sensing area for receiving a card and a plurality of data sensors disposed adjacent said sensing area, each said data sensor including a primary winding and a secondary winding, means including a card responsive switch for generating a request signal in response to disposition of a card in said sensing area, circuitry including a capacitor connected to said card responsive switch for applying an energizing signal to each said primary winding to induce signals in the corresponding secondary windings as a function of data encoded on said card, a data storage element correspondIng to each data sensor, means for applying an enabling signal to each said data storage element in response to disposition of a card in said sensing area, circuitry coupled between each said data sensor secondary winding and the corresponding data storage element for changing the condition of said data storage elements as a function of the data sensed by each of said data sensors, a relay, circuitry for producing an authorization signal in response to output signals from said data storage elements indicating a predetermined data item at each of said data positions including means responsive to an authorization request for applying an enabling voltage to said relay, and circuitry responsive to an incorrect output signal from any one of said data storage elements for preventing generation of said authorization signal for a predetermined period of time after termination of said request signal, said last named circuitry including logic means including at least one manually operable switch for combining signals from a plurality of data storage elements for completing a circuit to operatively energize said relay, for preventing generation of said authorization signal, a capacitor, means responsive to a predetermined charge on said capacitor for maintaining said relay operatively energized for said predetermined period of time after termination of said authorization request, and means responsive to an output signal from said logic means for modifying the charge on said capacitor.

Claim 20

The system as claimed in claim 16 wherein said capacitor charge modifying means includes a relay having a coil connected to said third circuitry, a set of contacts controlled by said coil, and circuitry connected between said set of contacts and said capacitor for placing said predetermined charge on said capacitor.

Claim 21

The system as claimed in claim 17 wherein said third circuitry includes circuitry connected to said coil for generating said authorization signal when said coil is placed in a first operative state in response to signals from said first circuitry, and said fourth circuitry includes circuitry connected to said coil for inhibiting generation of said authorization signal when said coil is placed in a second operative state in response to signals from said first circuitry.

Claim 22

The system as claimed in claim 11 wherein a plurality of said data sensing positions in said data sensor are aligned and said logic includes means for combining signals from said plurality of aligned data positions.

Claim 23

The system as claimed in claim 1 wherein said fourth circuitry includes means responsive to an attempt to generate a request signal during said predetermined period of time to extend said predetermined period of time.