Apparatus and method for a caller ID modem interface

Claim 2

A modem access control device, comprising: first port means, connected to a communications line, for transceiving information between the access control device and the communications line; processing means for processing access information; data storage means, connected to the processing means, for access information storage; caller identification decoding means, connected to the first port means and the processing means, for decoding caller identification information; second port means, connected to a communications device and to the first port means, for transceiving information between the access control device and the communications device; and quick hang up means, connected to the first port means and the processing means, for disconnecting an unwanted caller before communicating with the communications device upon command from the processing means.

Claim 3

A modem access control device of claim 1 wherein the modem access control device is preprogrammed with access information for identifying an unwanted caller.

Claim 4

The modem access control device of claim 1 wherein the data storage means includes means for storing caller telephone number, caller name, time of day, date, and number of calls.

Claim 5

The modem access control device of claim 2 wherein the access information comprises caller identification information including caller telephone number, caller name, time of day, and date.

Claim 8

The method of claim 5, wherein the step of preprogramming further comprises the step of programming a list of names of authorized caller names.

Claim 9

The method of claim 5, wherein the step of preprogramming further comprises the step of programming a list of authorized caller telephone numbers.

Claim 10

The method of claim 5, wherein the step of preprogramming further comprises the step of programming a list of authorized times of day to call.

Claim 11

The method of claim 5, wherein the step of reprogramming further comprises the step of programming a list of authorized days to call.

Claim 12

The method of claim 5, wherein the step of preprogramming further comprises the step of programming a list of authorized caller names, days and times of day to call.

Claim 13

The method of claim 5, wherein the step of preprogramming further comprises the step of programming a list of authorized caller telephone numbers, days and times of day to call.

Claim 14

The method of claim 5, wherein the step of preprogramming further comprises the step of programming a list of unauthorized caller names.

Claim 15

The method of claim 5, wherein the step of preprogramming further comprises the step of programming a list of unauthorized caller numbers.

Claim 16

An interface for connecting a modem to a telephone line, comprising: a telephone input port for receiving telephone signals into the interface; a ring detector, connected to the telephone input port, for detecting incoming calls; a quick hang up circuit, connected to the telephone input port, for disconnecting unauthorized callers prior to accessing the modem; a telephone output port for transmitting telephone signals to the modem; a caller identification decoder, connected to the output port, for decoding caller identification information; a controller, connected to the ring detector, quick hang up circuit, and caller identification decoder, for controlling the interface and for comparing the caller identification information to an access matrix for authorization purposes; a memory device, connected to the controller, for storing the access matrix; a pass through circuit, connected to the controller, for interconnecting the telephone input port to the telephone output port upon controller command; an in-use detector, connected to the telephone output port and the controller, for detecting a connection between the telephone line and the modem.

Claim 17

An interface for connecting a modem to a telephone line, comprising: a telephone input port for receiving telephone signals into the interface; a ring detector, connected to the telephone input port, for detecting incoming calls; a quick hang up circuit, connected to the telephone input port, for disconnecting unauthorized callers prior to accessing the modem; a telephone output port for transmitting telephone signals to the modem; a caller identification decoder, connected to the output port, for decoding caller identification information; a controller, connected to the ring detector, quick hang up circuit, and caller identification decoder, for controlling the interface and for comparing the caller identification information to an access matrix for authorization purposes; a memory device, connected to the controller, for storing the access matrix; a pass through circuit, connected to the controller, for interconnecting the telephone input port to the telephone output port upon controller command; an in-use detector, connected to the telephone output port and the controller, for detecting a connection between the telephone line and the modem.

Claim 18

The apparatus of claim 14 wherein the controller comprises a processor.

Claim 19

The apparatus of claim 14 wherein the controller comprises combinational logic.

Claim 20

An internal modem interface, connected to a telephone line, for screening incoming telephone calls to modem electronics, the internal modem interface comprising: a telephone input port for receiving telephone signals into the interface; a ring detector, connected to the telephone input port, for detecting the incoming call; an off-hook circuit, connected to the telephone input port, for connecting the modem interface to the telephone line; a dc holding circuit, connected to the off-hook circuit and the input port, for maintaining a connection with the incoming telephone calls; a decoder for decoding caller identification information and modem data; a pass through circuit, connecting the decoder to the telephone input port and the dc holding circuit, for selecting the telephone signals from the telephone input port for caller identification information decoding and from the dc holding circuit for modem data decoding; a controller, connected to the ring detector, off-hook circuit, dc holding circuit, pass through circuit, and decoder, for controlling the internal modem interface and for comparing the caller identification to an access matrix for authorization purposes; and a memory device, connected to the controller, for storing the access matrix, wherein the caller identification information from a telephone call is compared to the access matrix to determine if a caller is unauthorized to access the modem electronics and, if the caller is unauthorized, disconnecting the caller prior to enabling access to the modem by momentarily toggling the off-hook circuit.

Claim 21

An internal modem interface, connected to a telephone line, for screening incoming telephone calls to modem electronics, the internal modem interface comprising: a telephone input port for receiving telephone signals into the interface; a ring detector, connected to the telephone input port, for detecting the incoming call; an off-hook circuit, connected to the telephone input port, for connecting the modem interface to the telephone line; a dc holding circuit, connected to the off-hook circuit and the input port, for maintaining a connection with the incoming telephone calls; a decoder for decoding caller identification information and modem data; a pass through circuit, connecting the decoder to the telephone input port and the dc holding circuit, for selecting the telephone signals from the telephone input port for caller identification information decoding and from the dc holding circuit for modem data decoding; a controller, connected to the ring detector, off-hook circuit, dc holding circuit, pass through circuit, and decoder, for controlling the internal modem interface and for comparing the caller identification to an access matrix for authorization purposes; and a memory device, connected to the controller, for storing the access matrix, wherein the caller identification information from a telephone call is compared to the access matrix to determine if a caller is unauthorized to access the modem electronics and, if the caller is unauthorized, disconnecting the caller prior to enabling access to the modem by momentarily toggling the off-hook circuit.