Class 379/8 - With blocking of normal usage

Subclass of Class 379 - Telephonic communications
Definition: Subject matter including prevention of normal use of a telephone
No. of patents: 30
Last issue date: 04/05/2011

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Number	Title	Issue Date
7920678	Personal virtual assistant A computer-based virtual assistant includes a virtual assistant application running on a computer capable of receiving human voice communications from a user of a remote user interface and transmitting a vocalization to the remote user interface, the virtual assista...	04/05/2011
RE40020	Impedance blocking filter circuit An impedance blocking filter circuit is provided for use in telecommunication systems for interconnecting between incoming telephone lines and customer's terminal equipment so as to unconditionally block impedances above 20 KHz due to the customer's terminal equipme...	01/22/2008
RE39432	Impedance blocking filter circuit An impedance blocking filter circuit is provided for use in telecommunication systems for interconnecting between incoming telephone lines and customer's terminal equipment so as to unconditionally block impedances above 20 KHz due to the customer's terminal equipme...	12/19/2006
6842773	Processing of textual electronic communication distributed in bulk The invention relates to processing of electronic text communication distributed in bulk. In one embodiment, a process for blocking electronic text communication distributed in bulk is disclosed. In the process, a first electronic and a second electronic submission ...	01/11/2005
6665376	Selectively activated integrated real-time recording of telephone conversations with automated documentation of consent to call recording A system for controlling and monitoring the recording of telephone calls in institutions such as jails and correctional facilities, and for obtaining consent to such recording and monitoring. Calls are recorded automatically in response to the occurrence ...	12/16/2003
6363052	Congestion control in network systems Congestion control method in which a source switch measures a number of calls sent by the source switch to a congested switch that are rejected by the congested switch. In response to a report from the congested switch identifying its level of congestion,...	03/26/2002
6212259	Impedance blocking filter circuit An impedance blocking filter circuit is provided for use in telecommunication systems for interconnecting between incoming telephone lines and customer's terminal equipment so as to unconditionally block impedances above 20 KHz due to the customer's termi...	04/03/2001
6181777	Impedance blocking filter circuit An impedance blocking filter circuit is provided for use in telecommunication systems for interconnecting between incoming telephone lines and customer's terminal equipment so as to unconditionally block impedances above 20 KHz due to the customer's termi...	01/30/2001
5943393	Telecommunications intercept system A telephone wiretapping system having a call-forward event and reporting processor for producing a call-forward event control signal when a call from a calling party to a predetermined telephone line is to be call-forwarded to a different telephone line. ...	08/24/1999
5937029	Data logging system employing MN +1! redundancy A novel logging system employing M(N+1! redundancy is disclosed having applications in recording both voice and facsimile transactions. The logging system includes M chains of N+1 loggers. Each N+1 chain includes N working loggers and a single spare log...	08/10/1999
5930334	Method and apparatus for monitoring the operation of telecommunications equipment In a telecommunications system, the amount of time a subscriber device is effectively out of service as a result of some fault or failure in telecommunications equipment is monitored. Subscriber devices are connected by corresponding subscriber communicat...	07/27/1999
5857010	Power-failure resistant communication system A communication system for connecting a terminal through a communication channel for a communication signal and a control channel for the control signal is constructed by a decoder for decoding a dial signal such as a push button signal that is generated ...	01/05/1999
5598420	Apparatus and method for generating a power signal for a power system from signals genenrated by a communication device Method and System for providing a gateway between a communications device and data receiving device which corrects a data signal produced by the communications device by reducing the data errors produced by the communications device by replacing the data ...	01/28/1997
5533092	Order wire in telephone communication system A switchable order wire circuit installed in addition to a trunk connecting a master station which includes an exchanger and a dependent station in a telephone system. The order wire circuit includes a first telephone terminal located in the master statio...	07/02/1996
5483573	Electric circuit connector with auto-termination A connector unit (21) for automatically terminating a digital data services (DDS) line whenever a mating modular plug (30) is not inserted into the connector. The connector utilizes a switchable DDS jack (25) that mates with the modular plug (30) for conn...	01/09/1996
5195124	Testing system for local subscribers A test system for local subscriber lines, which is used with a telephone communication system having a central office exchange, local subscribers accommodated by the central office exchange, and intervening units, i.e., a central office terminal, a subscr...	03/16/1993
4807277	Remotely activated switching apparatus Apparatus for disconnecting and reconnecting equipment to a telephone line in response to a signal sent over the telephone line. The apparatus includes a voltage threshold circuit, a voltage regulator circuit and a switching and timing circuit. The switch...	02/21/1989
4674111	Method and apparatus for automatic dialing in mobile radio telephone systems A mobile telephone and method of dialing in which telephone numbers are stored in immediately adjacent memory locations and in which dialing is automatically and timely accomplished in a plurality of signalling formats....	06/16/1987
4611100	Bunching block for McCulloh circuits and method of operation A bunching block and method of operation is disclosed wherein the bunching block is adapted for use in a public utility central office to interconnect a plurality of user loops in series with a supervisory McCulloh receiver, the bunching block including s...	09/09/1986
4582964	Remote loop-around carrier test system A testing system for testing a selected telephone carrier channel wherein that channel is selectively interrupted at a selected repeater station along its route and bi-directionally looped back for testing. Selection and the looping back process is contro...	04/15/1986
4558182	Remotely-activated switching apparatus Apparatus is disclosed for disconnecting and reconnecting equipment to a telephone line in response to at least one signal sent over the telephone line. The apparatus includes a voltage threshold circuit, a voltage regulator circuit, a current chargeable ...	12/10/1985
4550225	AC Signal-activated switching apparatus Apparatus is disclosed for disconnecting and reconnecting equipment to a telephone line in response to at least one AC signal sent over the telephone line. The equipment can automatically be reconnected after a predetermined time period, or reconnected on...	10/29/1985
4485271	Remotely actuable line disconnect device A disconnecting device is inserted in a two-wire communication loop near the far end thereof. The device contains a latching winding of a latching relay which winding is inserted in series with one side of the loop. The winding controls two normally close...	11/27/1984
4434328	Remotely actuated telephone instrument connection block having instrument lockout feature A lockout circuit improves a remotely activated loop testing connection block for disconnecting a telephone subscriber's service instrument from a telephone tip and ring line pair during a test interval. The lockout circuit includes a latching relay which...	02/28/1984
4415778	Subscriber telephone test set Telephone testing equipment, particularly a telephone subscriber test set of the type enabling the subscriber to isolate malfunction either in the household interior telephone equipment, including interior household lines and telephone receivers, or in th...	11/15/1983
4394543	Telephone line holding circuit A telephone line holding circuit is disclosed which is adapted for temporary connection across a telephone line to maintain that line in a hold condition while line measurements and tests are being performed. The holding circuit is designed to be used ove...	07/19/1983
4317967	Fault isolation device A telephone fault isolation device is installed between customer telephone equipment, such as a PBX or KSU, and telephone company trunk lines feeding into such equipment, and is used to determine whether possible trouble is in the telephone company trunk ...	03/02/1982
4187414	Circuit arrangement for an interference data alarm system in communication facilities, particularly in telephone equipment Error and condition messages are transmitted from unmanned telecommunication facilities to a central exchange having a maintenance control station. In order to safeguard this interference data alarm system against interferences in the secondary station an...	02/05/1980
4169221	Method and apparatus for testing a subscriber line group marker of a telephone central office cross bar switching device Disclosed is a method and apparatus adapted to be used in testing a subscriber line group marker, of a telephone central office switching device, wherein such markers are energizable by application of central office battery potential through a normally op...	09/25/1979
4126771	Telephone line lifting apparatus A line lifting apparatus is disclosed which functions to connect and disconnect a customer station and a telephone line extending from a central office to the customer station, for line testing purposes. The connection and disconnection is provided by a b...	11/21/1978

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Class 379/8 - With blocking of normal usage