Data set adapter

Claim 2

Apparatus for coupling a facsimile communication unit to a data set connected to the terminal of a communication link comprising: means for placing said apparatus in one of two operating modes, gating means coupled to said placing means and responsive to the indicated mode of operation and to associated system status indication signals, first means coupled to said gating means for indicating to said data set the operational mode of said apparatus, timing means responsive to said status indication signals and coupled to said gating means for commencing a time sequence upon certain predetermined status indication signals being received at said timing means, second means coupled to said timing means for indicating to said data set to remain connected or to disconnect, respectively, said apparatus from said communication link in accordance with said time sequence, wherein said placing means comprises switch and associated indicator means for placing said apparatus in an automatic mode for automatic operation of said facsimile communication unit, said first indicating means being responsive to said automatic mode of operation established in said gating means for indicating to said data set said automatic mode of operation, first means for detecting a status indication signal from said data set upon automatic establishment of a communication over said communication link to enable said timing means, second means for detecting the receipt of facsimile data over said communication link in the receive mode and disabling the time sequence of said timing means prior to the end of said time sequence, said timing means completing said time sequence in the absence of the receipt of facsimile data over said communication link, thereby enabling said second indicating means to indicate to said data set to disconnect said communication established over said communication link, third means for detecting a status indication signal from said facsimile communication unit indicating an absence of recording media at said facsimile communication unit, said gating means coupled to said third detecting means and including fourth means for detecting the immediate loss of said recording media to enable said timing means to commence its time sequence, thereby allowing said second indicating means to disconnect said data set from said communication established over said communication link, and fifth means for detecting the long time absence of recording media to enable said first indicating means to indicate said absence of recording media to said data set to prevent further establishment of communications over said communication link.

Claim 3

Apparatus for coupling a facsimile communication unit to a data set connected to the terminal of a communication link comprising: means for placing said apparatus in one of two operating modes, gating means coupled to said placing means and responsive to the indicated mode of operation and to associated system status indication signals, first means coupled to said gating means for indicating to said data set the operational mode of said apparatus, timing means responsive to said status indication signals and cOupled to said gating means for commencing a time sequence upon certain predetermined status indication signals being received at said timing means, second means coupled to said timing means for indicating to said data set to remain connected or to disconnect, respectively, said apparatus from said communication link in accordance with said time sequence, wherein said placing means comprises switch and associated indicator means for placing said apparatus in an automatic mode for automatic operation of said facsimile communication unit, said first indicating means being responsive to said automatic mode of operation established in said gating means for indicating to said data set said automatic mode of operation, first means for detecting a status indication signal from said data set upon automatic establishment of a communication over said communication link to enable said timing means, second means for detecting the forward transmission of facsimile data over said communication link in the transmit mode and disabling the time sequence of said timing means prior to the end of said time sequence, said timing means completing said time sequence in the absence of the forward transmission of facsimile data over said communication link, thereby enabling said second indicating means to indicate to said data set to disconnect said communication established over said communication link, third means for detecting a status indication signal from said facsimile communication unit indicating an absence of original documents or the like at said facsimile communication unit, said gating means coupled to said third means and including fourth means for detecting the immediate loss of said document or the like to enable said timing means to commence its time sequence thereby allowing said second indicating means to disconnect said data set from said communication established over said communication link, and fifth means for detecting the long time absence of said documents or the like to enable said first means to indicate said absence of documents or the like to said data set to prevent further establishment of communication over said communication link.

Claim 4

Apparatus for coupling a facsimile communication unit to a data set connected to the terminal of a communication link comprising: means for placing said apparatus in one of two operating modes, gating means coupled to said placing means and responsive to the indicated mode of operation and to associated system status indication signals, first means coupled to said gating means for indicating to said data set the operational mode of said apparatus, timing means responsive to said status indication signals and cOupled to said gating means for commencing a time sequence upon certain predetermined status indication signals being received at said timing means, second means coupled to said timing means for indicating to said data set to remain connected or to disconnect, respectively, said apparatus from said communication link in accordance with said time sequence, wherein said placing means comprises switch and associated indicator means for placing said apparatus in an automatic mode for automatic operation of said facsimile communication unit, said first indicating means being responsive to said automatic mode of operation established in said gating means for indicating to said data set said automatic mode of operation, first means for detecting a status indication signal from said data set upon automatic establishment of a communication over said communication link to enable said timing means, second means for detecting the forward transmission of facsimile data over said communication link in the transmit mode and disabling the time sequence of said timing means prior to the end of said time sequence, said timing means completing said time sequence in the absence of the forward transmission of facsimile data over said communication link, thereby enabling said second indicating means to indicate to said data set to disconnect said communication established over said communication link, third means for detecting a status indication signal from said facsimile communication unit indicating an absence of original documents or the like at said facsimile communication unit, said gating means coupled to said third means and including fourth means for detecting the immediate loss of said document or the like to enable said timing means to commence its time sequence thereby allowing said second indicating means to disconnect said data set from said communication established over said communication link, and fifth means for detecting the long time absence of said documents or the like to enable said first means to indicate said absence of documents or the like to said data set to prevent further establishment of communication over said communication link.

Claim 5

Apparatus for coupling a facsimile communication unit to a data set connected to the terminal of a communication link comprising: means for placing said apparatus in one of two operating modes, NAND gate means coupled to said placing means and responsive to the indicated mode of operation and to associated system status indication signals, first means coupled to said NAND gate means for indicating to said data set the operational mode of said apparatus, timing means responsive to said status indication signals and coupled to said NAND means for commencing a time sequence upon certain predetermined status indication signals being received at said timing means, second means coupled to said timing means for indicating to said data set to remain connected or to disconnect, respectively, said apparatus from said communication link in accordance with said time sequence, wherein said placing means comprises switch and associated indicator means for placing said apparatus in a manual mode for manual operation of said communication unit, said first indicating means responsive to said manual mode of operation established in said NAND gate means and indicating to said data set said manual mode of operation, means for manually switching said data set to the manual mode, first means for detecting a status indication signal from said data set upon manual establishment of a communication over said communication link to enable said timing means, and second means for detecting the receipt of facsimile data over said communication link in the receive mode and disabling the time sequence of said timing means prior to the end of said time sequence, said timing means completing said time sequence in the absence of the receipt of facsimile data over said communication Link, thereby enabling said second indicating means to indicate to said data set to disconnect said communication established over said communication link.

Claim 6

Apparatus for coupling a facsimile communication unit to a data set connected to the terminal of a communication link comprising: means for placing said apparatus in one of two operating modes, NAND gate means coupled to said placing means and responsive to the indicated mode of operation and to associated system status indication signals, first means coupled to said NAND gate means for indicating to said data set the operational mode of said apparatus, timing means responsive to said status indication signals and coupled to said NAND means for commencing a time sequence upon certain predetermined status indication signals being received at said timing means, second means coupled to said timing means for indicating to said data set to remain connected or to disconnect, respectively, said apparatus from said communication link in accordance with said time sequence, wherein said placing means comprises switch and associated indicator means for placing said apparatus in a manual mode for manual operation of said communication unit, said first indicating means responsive to said manual mode of operation established in said NAND gate means and indicating to said data set said manual mode of operation, means for manually switching said data set to the manual mode, first means for detecting a status indication signal from said data set upon manual establishment of a communication over said communication link to enable said timing means, and second means for detecting the receipt of facsimile data over said communication link in the receive mode and disabling the time sequence of said timing means prior to the end of said time sequence, said timing means completing said time sequence in the absence of the receipt of facsimile data over said communication Link, thereby enabling said second indicating means to indicate to said data set to disconnect said communication established over said communication link.

Claim 7

Apparatus for coupling a facsimile communication unit to a data set connected to the terminal of a communication link comprising: means for placing said apparatus in one of two operating modes, NAND gate means coupled to said placing means and responsive to the indicated mode of operation and to associated system status indication signals, first means coupled to said NAND gate means for indicating to said data set the operational mode of said apparatus, timing means responsive to said status indication signals and coupled to said NAND gate means for commencing a time sequence upon certain predetermined status indication signals being received at said timing means, second means coupled to said timing means for indicating to said data set to remain connected or to disconnect, respectively, said apparatus from said communication link in accordance with said time sequence, wherein said placing means comprises switch and associated indicator means for placing said apparatus in a manual mode for manual operation of said communication unit, said first indicating means responsive to said manual mode of operation established in said NAND gate means and indicating to said data set said manual mode of operation, means for manually switching said data set to the manual mode, first means for detecting a status indication signal from said data set upon manual establishment of a communication over said communication link to enable said timing means, and second means for detecting the forward transmission of facsimile data over said communication link in the transmit mode and disabling the time sequence of said timing means prior to the end of said time sequence, said timing means completing said time sequence in the absence of the forward transmission of facsimile data over said communication link, thereby enabling said second indicator means to indicate to said data set to disconnect said communication established over said communication link.

Claim 8

Apparatus for coupling a facsimile communication unit to a data set connected to the terminal of a communication link comprising: means for placing said apparatus in one of two operating modes, NAND gate means coupled to said placing means and responsive to the indicated mode of operation and to associated system status indication signals, first means coupled to said NAND gate means for indicating to said data set the operational mode of said apparatus, timing means responsive to said status indication signals and coupled to said NAND gate means for commencing a time sequence upon certain predetermined status indication signals being received at said timing means, second means coupled to said timing means for indicating to said data set to remain connected or to disconnect, respectively, said apparatus from said communication link in accordance with said time sequence, wherein said placing means comprises switch and associated indicator means for placing said apparatus in a manual mode for manual operation of said communication unit, said first indicating means responsive to said manual mode of operation established in said NAND gate means and indicating to said data set said manual mode of operation, means for manually switching said data set to the manual mode, first means for detecting a status indication signal from said data set upon manual establishment of a communication over said communication link to enable said timing means, and second means for detecting the forward transmission of facsimile data over said communication link in the transmit mode and disabling the time sequence of said timing means prior to the end of said time sequence, said timing means completing said time sequence in the absence of the forward transmission of facsimile data over said communication link, thereby enabling said second indicator means to indicate to said data set to disconnect said communication established over said communication link.