Class 379/190 - Time out

Subclass of Class 379 - Telephonic communications
Definition: Subject matter which in response to a specified equipment
No. of patents: 23
Last issue date: 06/12/2007

Number	Title	Issue Date
7231026	Detection of carrier mis-routing in telephone systems Methods to identify inter-carrier telephone calls in a telephone system that are being mis-routed in such a way as to violate existing regulatory tariffs and/or established inter-carrier contracts. The common name for this manipulation is “arbitrage”, and the in...	06/12/2007
6542583	Caller identification verification system A process, apparatus and system are disclosed for verifying the authenticity of a user before providing the user with a desired service. The process involves first receiving a request from the user. Next, a question set is fetched corresponding to the use...	04/01/2003
5812648	Telephone ringer control device A telephone ringer control device selectively activates or deactivates a telephone ringer to silence a telephone during specified periods. The silent periods may be specified by a timer. In one embodiment, the ringer control device includes a remotely acc...	09/22/1998
5694461	Method for controlling long distance calling using a multi-frequency receiver A method for controlling long distance calling in an analog key telephone system having a multi-frequency receiver includes the steps of: connecting the multi-frequency receiver to a telephone connected within the system; determining whether numerical dig...	12/02/1997
5619568	Cordless phone with time-out controlled ringer A cordless telephone system comprises a base unit and a portable handset having a rechargeable battery. To conserve battery power in the handset, the ringer is normally in an inactive state but may be switched active for a predetermined period of time. Th...	04/08/1997
5606593	Apparatus and method for automatically returning a telephone set to an on-hook condition An apparatus that after a time period settable by the user automatically returns an off-hook telephone to an on-hook condition. This apparatus thus electrically hangs up a telephone handset that is inadvertently left off-hook and allows normal handling of...	02/25/1997
5546382	Communication method and communications control apparatus in circuit switching network A communication control unit connecting a terminal and a network temporarily disconnects a circuit of the network without ending a session, when no data is received from the network or when no data is transmitted to the network. In response to an occurren...	08/13/1996
5469493	Telephone call saving system and method for an integrated service digital network A call saving system for an ISDN telephone switching system includes a subscriber switching unit and terminal units connected to the subscriber switching unit via subscriber lines. A control device controls an overall call saving process executed between ...	11/21/1995
5452295	Call disconnection method and exchange executing the same in ATM network In a call disconnection method and a system for executing the same in an ATM (Asynchronous Transfer Mode) network, a plurality of timers are provided corresponding to each call in an exchange of an ATM network. A connected call is detected, and a data cel...	09/19/1995
5416832	Call detection control apparatus A call detection control apparatus includes individual call detecting circuits, a common call detecting circuit, switching circuits, and a power supply circuit. The individual call detecting circuits individually detect call signals, which originate from ...	05/16/1995
5091934	Tone modification system for telephone system with clock A telephone system with a clock includes a circuit which produces a first tone indicating a connection of a transmission line is on hold or that a preset time has arrived, and a different time announcing tone for announcing the arrival of the preset time ...	02/25/1992
5062134	Timer for controlling telephone usage A timer for automatically controlling the cumulative service time of a telephone consisting of a box mounted over and plugged into a standard wall telephone outlet. The box contains an exterior receptacle for connection with the telephone cord. The interi...	10/29/1991
5056083	Telephone apparatus and a method of controlling same This invention relates to a telephone apparatus and a method of controlling the telephone apparatus, wherein, where a calling operation conflicts with a call-receiving operation, calling processing and call-receiving processing are performed so that an in...	10/08/1991
4993062	Telephone control system including stored blocked and allowed telephone numbers A telephone control system is provided for use between central office telephone equipment and a telephone line pair connected to a predefined telephone station. The telephone control system includes monitoring circuitry for monitoring the telephone line p...	02/12/1991
4977589	Signalling and control protocol for a communication system A signalling and control protocol is provided wherein each subscriber unit (106) operating within a communication system (100) must transmit a request (200, 200' or 200") to communicate to a central station. If a communication channel is available, the ce...	12/11/1990
4903291	Automatic on-hook arrangement An automatic on-hook arrangement which includes a voice detecting circuit for detecting input voice from a micro-phone, a timer for measuring time in which the input voice from the micro-phone is not detected, a warning section which emits warning upon me...	02/20/1990
4771452	Telephone call duration control A telephone timing device comprising a synchronous motor driven timer energized by a circuit having at least one switch activated by removing the handset from its cradle to start a time cycle. The telephone owner preselects the talking time by setting the...	09/13/1988
4582958	Secretary telephone system In a secretary telephone system for calling a transfer destination telephone set through given local lines of a telephone set different from a called party telephone set upon reception of a call from a calling party telephone set to the called party telep...	04/15/1986
4572928	Key telephone system In a key telephone system with a plurality of four-wire key telephone sets wherein a two-wire telephone set is connected to a main control device via a pair of speech lines so that intercom speech and office line speech are possible between the two-wire t...	02/25/1986
4511765	Universal control device for restricting dialing and time limiting telephone calls A telephone set control device. A dialing signal is converted into a pulse signal through a converter circuit; then, a pulse detection circuit generates a constant wavewidth signal to be coupled to a microprocessor unit, which then generates a signal, by ...	04/16/1985
4454385	Latching relay hold release circuit for a telephone instrument In a hold circuit including a relay normally latched and connecting the hold circuit to a subscriber telephone line, a first hold release circuit outputs a trigger signal to a silicon controlled rectifier turning on the rectifier responsive to a sensed dr...	06/12/1984
4447674	Electronic hold release circuit In a hold circuit including a silicon controlled rectifier (SCR) normally turned on and connecting the hold circuit to a subscriber line, a first hold release circuit outputs a trigger signal to a transistor turning off the transistor and disconnecting a ...	05/08/1984
4358639	Permanent signal holding module A manually assisted lockout relay circuit is used in a telephone switching facility to disconnect and isolate an offending subscriber's telephone line to prevent it from capturing and holding central exchange equipments that are commonly accessible and ne...	11/09/1982

PatentStorm

Bizarre Patents

PatentStorm News

Class 379/190 - Time out