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"I hate what they've done to my child...I would never let my own children watch it. "
Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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| Number | Title | Issue Date |
| 7999661 | Signal relay device, communication network system and operation system A signal relay device, a communication network system and an operation system include: a standardized logic interface conversion unit for judging a control system type or a device type and converting a signal to a signal appropriate for a communication network; or a... | 08/16/2011 |
| 7460006 | Conformal repeater unit A signal repeater for receiving and re-transmitting signals from environmental transducers and the like, and for mechanically and electrically cooperating with existing electrically powered fixtures. More particularly, the present invention includes a housing unit f... | 12/02/2008 |
| 7408446 | Burglar alarm device for vehicle There is provided in back of the instrument panel the motion sensor that transmits the radio wave continuously or periodically and receive the radio wave reflected in the vehicle compartment. Also, there is provided the burglar horn that executes specified alarming ... | 08/05/2008 |
| 7403097 | Conformal repeater unit A signal repeater for receiving and re-transmitting signals from environmental transducers and the like, and for mechanically and electrically cooperating with existing electrically powered fixtures. More particularly, the present invention includes a housing unit f... | 07/22/2008 |
| 7224272 | Power line repeater system and method A PLCS network element that provides communications to one or more user devices and may also repeat data for other network elements is provided. In one embodiment, the device includes software for discovering its upstream gateway, for acting as a gateway for other d... | 05/29/2007 |
| 7199701 | Repeater unit A signal repeater for receiving and re-transmitting signals from environmental transducers and the like, and for mechanically and electrically cooperating with existing electrically powered fixtures. More particularly, the present invention includes a housing unit f... | 04/03/2007 |
| 7155006 | Method and apparatus for outbound wave subtraction using a variable offset amplifier A method and apparatus for outbound wave subtraction using a variable offset amplifier is described. The method includes calibration of a bi-directional signaling circuit in order to calculate one or more offset codes for cancellation of an outbound wave within a bi... | 12/26/2006 |
| 7148811 | Emergency underwater notification device The emergency underwater notification device disclosed, one of which would be carried by each diver on a team of divers at a dive site, comprises (a) an activator; (b) one or more primary signal emitters, each of which emits a primary notification signal upon activa... | 12/12/2006 |
| 7098777 | Electronic equipment communications system and repeater An electronic equipment communications system consists of electronic equipment and at least one or more control terminals and external storage devices connected via a repeater. Communications between the repeater and electronic equipment is performed by an external ... | 08/29/2006 |
| 7061371 | Auto monitor An automobile diagnostic system monitors in real-time sub-system components. The system has a plurality of acoustic and video sensors in combination for audibly detecting and visually monitoring critical noise levels and/or vibrations in sub-systems such as brakes, ... | 06/13/2006 |
| 6972661 | Anti-interference relay device for signal transmission An anti-interference relay device has a receiving module and a transmitting module. The receiving module modulates a received IR signal from a remote controller and an identification (ID) code of the receiving module to an RF signal and then broadcasts the RF signal... | 12/06/2005 |
| 6904373 | USB-controllable power supply A USB (universal serial bus) controllable power supply and method for supplying power to a circuit board device under test (DUT) via a controllable power supply. The power supply employs a USB interface to communicate with external devices, such as a host computer. ... | 06/07/2005 |
| 6628992 | Remote terminal unit Apparatus for communication for a supervisory control and data acquisition (SCADA) system, the SCADA system comprising: an enterprise server; at least one intelligent electronic device (RTU), wherein the RTU measures a physical process and stores digital ... | 09/30/2003 |
| 6400281 | Communications system and method for interconnected networks having a linear topology, especially railways A system and method for communicating over networks, particularly generally-linear networks such as a netowrk of railcars in a railway train. The disclosed system and method include the relaying of packets which may contain plural messages down a line of ... | 06/04/2002 |
| 6037868 | Alarm method and apparatus for a mobile communication repeating system An alarm method and apparatus in a mobile communication repeating system having a plurality of repeating modules for informing a base station that a repeating module is out of order. The repeating modules respectively check whether a self repeating module... | 03/14/2000 |
| 5930399 | Data encoding for a communication channel supporting a subset of the characters to be transmitted Characters that are not among those recognized for use in page messages are encoded using a subset of the recognized printable characters to enable the data comprising a page object to be transmitted over a paging channel. In one preferred form of the inv... | 07/27/1999 |
| 5838226 | Communication protocol for transmission system for controlling and determining the status of electrical devices from remote locations A communication protocol for a two way transmission system having at least one first transmitter/receiver device, at least one second transmitter/receiver device and at least one repeater for relaying signals between the first and second devices. The prot... | 11/17/1998 |
| 5835005 | Power-line data transmission method and system utilizing relay stations When a sending station intends to transmit data to a target station to which the sending station cannot establish a direct link, the sending station searches for a station, i.e., a relay station which can communicate with the target station by retrieving ... | 11/10/1998 |
| 5781125 | Arrangement for the wireless exchange of data between a servicing device and a control unit in a motor vehicle In the case of an arrangement for the wireless exchange of data between a servicing device and a control unit in a motor vehicle, having a transmission path between the servicing device and a transmitting and receiving device (SEE) on the motor vehicle, t... | 07/14/1998 |
| 5592507 | Intermediate relay station of a digital microwave communication system using service channel for monitoring and controlling space and/or time diversity, heterodyne relay, phase control, frequency control, with phase shift keying modulation A microwave digital communication system PSK-modulates a microwave carrier by using a main signal and, further, frequency-modulates it by using a service channel (SC) signal for monitoring and controlling the system. An intermediate relay station employin... | 01/07/1997 |
| 5572352 | Apparatus for repowering and monitoring serial links A computer system employs a repeater unit which repowers a serial channel link. The repeater unit also monitors and records non-idle usage and errors for both directions of the repeated serial link. Non-idle usage of the serial link is recorded as a numbe... | 11/05/1996 |
| 5475363 | Disaster prevention monitoring apparatus A disaster prevention monitor is disclosed in which the power consumption during a line monitoring process is reduced, and a disconnection or a short circuit of control lines can be detected by using a single switching means. A central station has a monit... | 12/12/1995 |
| 5349584 | Method of maintaining control in a trunked communication system A master repeater controls a trunked communication system having a number of communication resources. The master repeater determines (201) how many communication resources are available to the master repeater. When one control resource and one message res... | 09/20/1994 |
| 5223816 | Security and communication system with location detection An improved security and communication system accurately and quickly locates the position of a signaling portable radio frequency transmitter. When a portable transmitter is activated, a first signal, including identification information, is emitted. The ... | 06/29/1993 |
| 5162936 | Apparatus for monitoring the operation of an optical repeater Apparatus for monitoring a plurality of optical repeaters of an optical communication system in which each said repeater directly amplifies an optical signal transmitted in an optical fiber and passing through the respective optical repeater, including an... | 11/10/1992 |
| 5140308 | Radio automatic alarm transfer system A mobile radio system has an upward and downward control channel for controlling a call-out transmitted from a mobile terminal station, independently from a communication channel. The system detects an abnormal state of an automobile equipped in the mobil... | 08/18/1992 |
| 4758822 | Bidirectional amplifier A bidirectional amplifier for use in a transmission line, that utilizes a pair of interconnected bridge circuits including isolation transformers and a pair of unidirectional amplifiers. The transmission in each direction uses a single amplifier to amplif... | 07/19/1988 |
| 4695919 | Circuit arrangement for protection against surge voltages for a repeater An intermediate repeater or a regenerative repeater has a circuit arrangement for the coarse protection against surge voltages, the arrangement comprising current supply separating filters for the remote feeding via a remote feed current path, fed via the... | 09/22/1987 |
| 4651134 | Switched capacitor coupled line receiver circuit A receiver circuit uses a switched capacitor circuit to couple either analog or digital signals received over a two lead communication facility to connected apparatus. During a first time interval, a capacitor is connected across a lead of a facility to s... | 03/17/1987 |
| 4638298 | Communication system having message repeating terminals A system is provided for communicating between terminal units joined on a power distribution network. The terminal units in the system are capable of interfacing with external devices to which they are attached, of communicating with other terminal units,... | 01/20/1987 |
| 4528615 | Repeater housing and circuit mounting structure An undersea communication cable system repeater housing and electronic circuits mounting structure includes a vessel having an electrical insulator covering an inside surface of the vessel. A heat conducting structure for mounting electronic circuits incl... | 07/09/1985 |
| 4362952 | Apparatus and method for initiation of reciprocal remote feeding of intermediate stations of a communication installation Method and apparatus for start-up of reciprocal remote supply feeding of intermediate stations utilizing DC current series feeding. In the operation of remote feeding systems of this type, the switch-on operation for reasons of safety for the individuals,... | 12/07/1982 |
| 4136267 | Transmission systems A repeater for a submarine cable installation which allows remote control of amplifier gain, equalizer losses and oscillator frequency. A control signal of selected frequency is transmitted to the repeater and converted to a d.c. control signal to adjust ... | 01/23/1979 |
| 4128743 | Circuit arrangement for blocking a bidirectional amplifier against receiving outgoing signals A circuit for the reciprocal transmission of signals through transmitting channels. The circuit has amplifiers therein for amplifying the signals being transmitted in opposite directions along the line. A pair of electronic hybrid circuits are provided so... | 12/05/1978 |
| 4025735 | Negative conductance network Signal transmission circuit characteristics are supplemented by a negative conductance circuit in which current sources of complementary polarity are connected in shunt between the conductors of the signal circuit. Changes in the voltage level of one side... | 05/24/1977 |
| 4007340 | Distance-related variable gain amplifier Apparatus for electrically communicating between a given location and a variably spaced apart remote location, the locations being connected via electrical conductors. A variable gain amplifier is connected in series between the spaced apart locations for... | 02/08/1977 |
