Abstract: A fiber optic/coaxial cable telephony network including power. Power is supplied through the coaxial cable portion of the video network to a cable network unit where the power is converted and supplied to the equipment including customer premises equipment.

Abstract: A device for detecting the presence of spurious energy on a bus based network. The device identifies the subscriber location which is the source of spurious energy and includes disconnection capability to remove that subscriber location from the network.

Abstract: A method and system for controlling traffic in selected links of the Public Switched Telephone Network (PSTN) through the use of variable price incentives. The number of selected PSTN links which are available for use are determined at a predetermined time through the use of an appropriate traffic measurement system. Thereafter, a customer usage rate is determined for the selected PSTN links. The determined rate corresponds to the number of selected links which are available for use. An electrical signal is generated for receipt by the user and which contains information corresponding to the determined customer usage rate.

Abstract: A method and system is provided for use in an Advanced Intelligent Network (AIN) for automatically accessing and invoking existing switch-based services without going off-hook. To be operative, the Advanced Intelligent Network must be equipped with O-called-party-busy trigger and leg manipulation functionality such as in AIN release 1.0 architecture and have at least one service node or suitable switch in electrical communication with a plurality of central offices via a suitable signaling protocol such as Transaction Capability Application Part (TCAP) protocol. The switch or service node must be operative as the home switch or virtual Service Switching Point (SSP) for subscribers to existing switch-based services. In operation, the signaling protocol is monitored to detect predetermined triggers and line conditions associated with selected switch-based services.

Abstract: A hybrid coaxial cable network employing interdiction to ensure privacy in telephony communications. The video and telephony signals are secured such that telephony and interactive video signals to and from a subscriber do not appear on the network at any other undesired subscriber location.

Abstract: A fiber optic/coaxial cable telephony network including power. Power is supplied through the coaxial cable portion of the video network to an cable network unit where the power is converted and supplied to the equipment including customer premises equipment.

Abstract: The present invention relates to a method of interface between a voice activated dialing system and a user. The present invention solves the problems presented by the prior art by providing a user interface which can add a name and corresponding telephone number to a directory during the process of initiating a telephone call. In addition, the present invention provides the user the opportunity to select which element of a directory listing should be changed, using a single integrated review, erase and change functionality accessible while in a directory mode.

Abstract: A method and apparatus for delivering passband and telephony signals including signal combining and splitting. The method and device employs passive electronics in the form of L-filters, high pass filters and low pass filters to deliver baseband telephone communications and interactive video communications.

Abstract: Automatic Customer Callback (ACC) functionality is implemented directly into service logic of an Advanced Intelligent Network (AIN). The Advanced Intelligent Network includes a Central Office Switch (COS) which is provided in electrical communication with Service Control Point (SCP), at least one calling party, and at least one called party. The AIN components preferably communicate with one another through Transaction Capability Application Part (TCAP) signaling protocol and are directed for use in an AIN 0.2 network. An adjunct processor such as an Intelligent Peripheral (IP) is also provided in electrical communication with the COS. In operation, digits dialed by the calling party (those corresponding to the telephone number of the called party) are collected as well as the calling party telephone number. If the called party line is busy, then the calling party activates the Automatic Customer Callback (ACC) service, the subscriber's telephone line will be monitored to detect an idle condition.

Abstract: A first inverter circuit is coupled between a first voltage source and a reference potential by a plurality of cascaded transistors. Each of the cascaded transistors has a control gate which may be selected to bring the resistance of the transistor into circuit with the inverter circuit to control the charging rate of a distributed capacitance. An output circuit coupled to the first inverter circuit provides the distributed capacitance and an inverted buffered output. The output circuit also includes an output which may be connected to another circuit of the present invention to form a cascaded delay circuit and to receive a reset signal for resetting the cascaded delay circuit.

Abstract: An arbitration circuit especially useful for SCSI-II applications, but also having other applications. The basic arbitration circuit requires only thirty NOR gates, one inverter, and connection to all but the lowest priority data line in order to have an arbitration circuit for sixteen lines. The basic circuit will arbitrate among up to sixteen units and is extremely compact and could be used on SCSI related integrated circuits in addition to other SCSI circuitry. The basic arbitration apparatus may also be expanded to accommodate a thirty-two line SCSI-II bus by extending the number of stages to thirty-two.

Abstract: A printed circuit board backpanel uses stripline construction to allow emitter coupled logic. (ECL) signals and transistor-transistor logic (TTL) signals on the same signal layer, while providing electromagnetic interference (EMI) emission control.

Abstract: An automatic paper feed apparatus includes a receptacle for a paper roll, which receptacle comprises a curved floor and opposite side walls which slope outwardly from bottom to top. The floor is ribbed on it sinner surface to minimize frictional engagement of a leader from the paper roll with said floor. Within the receptacle, the paper roll rests upon a guide roll and a first feed roll which is capable of rotating the paper roll to feed a paper web from the roll. A guide chute is provided which guides movement of the paper web from the paper roll to an exit portion of the guide chute from where it may be introduced into a printer or other device. The guide chute is comprised of a portion of the floor of the receptacle and a movable upper element. The movable upper element is pivotally mounted at one end on the shaft associated with the first feed roll.

Abstract: Front and rear printers for use with a document transport mechanism. The printers are identical in construction with each having a compact housing in which the associated print head is mounted. The housing has first and second side walls, a front wall which also functions as a guide for guiding documents to be printed upon therepast, and a rear wall which functions as a circuit board which houses the driver electronics assocated with the printer. The print head (ink jet) is mounted on a carriage which is moved within the housing in a first direction which is perpendicular to the direction in which the documents are moved in a document track past the printers. The front and rear printers are detachably mounted on opposed sides of the document track to enable the printing of alphanumerics or graphics on the front or the rear of a document moving thereby.

Abstract: A CMOS circuit having an input threshold, the CMOS circuit including a first field-effect transistor having a source connected to a first power supply terminal, a drain connected to an output terminal, a gate connected to an input terminal, and a first channel between the source and the drain having a first width and a first length. A programmable field-effect transistor circuit has a gate terminal connected to the input terminal, a drain terminal connected to the output terminal, a source terminal connected to a second power supply terminal, and a second channel circuit between the drain terminal and the source terminal having an effective width and an effective length. Programmable input terminals are connected to the second channel circuit for changing the ratio of the product of the first width times the effective length to the product of the effective width times the first length such that the input threshold voltage of the CMOS circuit is changed responsive to the change of the ratio.

Abstract: A method and apparatus for controlling ground bounce and transient noise induced in an integrated circuits power supply buses by feeding back the input/output power supply bus voltages levels and comparing those levels to the internal logic power supply bus voltage levels. Significant noise transients on the input/output upper potential power supply bus will increase a resistance of a series element in each buffer circuit that drives a respective output driver and thereby increase the overall switching time of each buffer and output driver combination. Similarly, significant ground bounce voltages on the input/output lower potential power supply bus will increase a resistance of another series element in each buffer circuit driving its respective output driver and thereby increase the overall switching time of each buffer and output driver combination.

Abstract: A disconnectable, remountable, extension for a document track in a table-top, document processing machine. The extension has first and second fingers which fit into first and second openings in a coupling member which is resiliently biased towards the document track. The extension also has members which cooperate with the document track to keep the extension aligned in a vertical direction relative to the document track. When the extension contacts another member when the machine is moved on the table top, the extension "break away" or is uncoupled from the document track without damage to either of the members. The extension can then be remounted on the document track.

Abstract: A device and method for generating a symmetrical clock signal. The device comprises a signal generator, buffer and differential amplifier. The signal generator generates a periodic wave signal. The buffer receives the periodic wave signal and provides a square wave clock signal. The differential amplifier receives the clock signal and a reference voltage signal and provides an error signal to the buffer.