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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 |
| 8160531 | Receiving device for adjusting energy of a received signal sent over a transmission line A receiving device is provided capable of avoiding reception of unnecessary energy when a signal waveform actually changes on a receiving side. An impedance control circuit includes a sensing unit to sense one or more of a voltage, current, or power of a signal to b... | 04/17/2012 |
| 7925235 | Communication system A communication system includes: a transmitter including a transmission circuit unit generating an RF signal for transmitting data and an electrical-field coupling antenna transmitting the RF signal as an electrostatic field or an induction field; a receiver includi... | 04/12/2011 |
| 7408993 | Digital communication extender system and method An extender circuit for handling a communication signal transmitted over a transmission line includes a voltage clamp and a current booster circuit. The voltage clamp is connected to a receive end of the transmission line and is operable to clamp a reflection signal... | 08/05/2008 |
| 7392029 | Method and apparatus for true diversity reception with single antenna A system for wireless communication, particularly for receiving communication signals, said system comprising: A main antenna structure (330), said antenna structure adapted to receive a communication signal (325a) as a first internal signal; an... | 06/24/2008 |
| 7391332 | Radiation information management device and communication device A radiation information management device comprises a measuring unit, a comparing unit, and a management information generating unit. The measuring unit measures unwanted radio wave radiation radiated from a balanced transmission line. The comparing unit compares a ... | 06/24/2008 |
| 7362814 | Memoryless spectrum correction algorithm for non-ideal I/Q demodulators An algorithm for correcting the output of an analog I/Q demodulator without the need for calibration or storing state information. The output of the analog I/Q demodulator is digitized, and the discrete-time samples are divided into segments. A digital frequency tra... | 04/22/2008 |
| 7358923 | Enhanced magnetic field communication system Devices and methods are provided to enhance magnetic field communication. One aspect of the present subject matter relates to a method for transmitting and receiving signals using an antenna element electrically connected to a driver and an amplifier. According to v... | 04/15/2008 |
| 7330703 | Transceiver for bidirectional frequency division multiplexed transmission The present invention relates to a transceiver for bidirectional frequency division multiplexed transmission, a communication system including one or more transceivers. Optionally, the communication system is a communication system for a digital subscriber line. The... | 02/12/2008 |
| 7253637 | Arc fault circuit interrupter system In order to determine whether arcing is present in an electrical circuit, a sensor signal corresponding to current in said electrical circuit is processed. The sensor signal is filtered to determine the presence of noise in a predetermined frequency range and produc... | 08/07/2007 |
| 7221193 | On-chip termination with calibrated driver strength Techniques are provided for controlling an on-chip termination resistance in an input or output (IO) buffer using calibration circuits. Each calibration circuit monitors the voltage between an external resistor and a group of on-chip transistors. When the effective ... | 05/22/2007 |
| 7218155 | Techniques for controlling on-chip termination resistance using voltage range detection Techniques are provided for controlling an on-chip termination resistance in an input or output (IO) buffer using a calibration circuit. The calibration circuit monitors the voltage between an external resistor and a group of on-chip transistors. When voltage betwee... | 05/15/2007 |
| 7211768 | Heating line pattern structure of defogger A heating line pattern structure of a defogger comprising a meander shape heating line portion is provided, in which the local temperature rise of a glass panel may be suppressed and which has a good outward appearance. Two lateral heating lines each having a thick ... | 05/01/2007 |
| 7187907 | Simultaneous two-way transmission of information signals in the same frequency band This invention provides designs for communication systems that use adaptive filters in circuits whose purpose is to enable two-way transmission of information signals in the same frequency band at the same time over twisted pair channels, coaxial cable channels, fib... | 03/06/2007 |
| 7176786 | Method of isolating data in a power line communications network The present invention provides isolation between a power line local area network and another network such as a power line wide area network. In one embodiment of the present invention, a filter device is installed on the power line supplying power to a structure in ... | 02/13/2007 |
| 7151656 | Arc fault circuit interrupter system A system for determining whether arcing is present in an electrical circuit in response to a sensor signal corresponding to current in the circuit includes a circuit for analyzing the sensor signal to determine the presence of broadband noise in a predetermined rang... | 12/19/2006 |
| 7136265 | Load recognition and series arc detection using bandpass filter signatures A method and system for determining whether arcing is present in an electrical circuit includes sensing a change in an alternating current in the circuit and developing a corresponding input signal, analyzing the input signal to determine the presence of broadband n... | 11/14/2006 |
| 7116954 | Tunable bandpass filter and method thereof The present invention provides a tunable bandpass filter and method thereof. In a preferred embodiment, the tunable bandpass filter uses variable ferro-electric capacitors to adjust both the passband and the notch across the normal operating range of a wireless comm... | 10/03/2006 |
| 7092691 | Switchless multi-resonant, multi-band power amplifier The present invention discloses a generic approach to the design of single-path, switchless multi-resonant, multi-band power amplifiers. In the preferred embodiments, the amplifier includes one or more amplification stages, a switchless, multi-resonant, input impeda... | 08/15/2006 |
| 7076206 | System for wireless transmission of electrical power, a garment, a system of garments and method for the transmission of signals and/or electrical energy The invention describes a system for electrical transmission in the field of garments and a corresponding transmitter for this. Electrical circuits in garments are coupled, preferably inductively in a wireless manner with electrical devices and/or electrical circuit... | 07/11/2006 |
| 7068480 | Arc detection using load recognition, harmonic content and broadband noise A method of determining whether arcing is present in an electrical circuit includes sensing a change in current in the circuit and developing a corresponding input signal, analyzing the input signal to determine the presence of broadband noise in a predetermined ran... | 06/27/2006 |
| 7050763 | Method and device for transferring a signal from a signal source to a signal sink in a system The system has at least two electronic units between which signals are transferred from a first electronic unit and a second electronic unit. The first electronic unit has a signal source. The second electronic unit has a signal sink. A signal to be transferred is c... | 05/23/2006 |
| 7024157 | Local area network computer system utilizing radiating transmission line A radio frequency communication system utilizing a radiating transmission line for communicating data signals is disclosed. The data signals convey digital data to remotely located data devices, including computers, equipment control systems and digital video camera... | 04/04/2006 |
| 6999743 | Line interface with second order high pass transfer function A transceiver system is disclosed for use in a telecommunication system. The transceiver system includes a transmission circuit including a differential transmitter input coupled to a differential input of a transmission amplifier, a receiver circuit including a dif... | 02/14/2006 |
| 6985760 | Foldable portable radio terminal A foldable portable radio terminal is disclosed which normally optimizes an antenna characteristic by an antenna matching circuit even if the body length of the foldable portable radio terminal varies. A folded state detection circuit sends a detection signal to a c... | 01/10/2006 |
| 6970688 | Local oscillator signal divider and low-noise converter employing the same A rat race circuit has an annular transmission line formed on a microstrip dielectric substrate. A terminal for port 1 is formed at any given position of the annular transmission line. Respective terminals for port 2 and port 3 are formed at res... | 11/29/2005 |
| 6947002 | Antenna An antenna includes an electrically insulative narrow elongated bracket, a coiled resonant conductor sleeved onto the bracket, a coaxial cable signal line extended out of one end of the bracket, a first metal conducting connecting member fastened to the bracket and ... | 09/20/2005 |
| 6937111 | Device and system having self-terminated driver and active terminator for high speed interface A transmission line adapter for high speed interface. A receiver receives input signals via a transmission line. An active termination circuit is selectively connected to the transmission line in parallel with the receiver according to a receive condition. A self-te... | 08/30/2005 |
| 6920187 | Constant delay zero standby differential logic receiver and method A differential receiver circuit on an integrated circuit consumes substantially no standby power, has constant propagation delay regardless of the input common mode bias, has acceptable common mode rejection and includes first and second pass circuits and buffers to... | 07/19/2005 |
| 6892058 | Method and apparatus for facilitating fault tolerance in a radio frequency amplifier system N input signals are fed (702) to a first Fourier Transform Matrix (FTM) (208) to produce N intermediate signals. Each of the N intermediate signals is split (704) via a non-isolating splitter (300) to produce M split signals. At least one... | 05/10/2005 |
| 6816714 | Antenna interface unit A ferro-electric tunable duplexer is provided, integrated with one or more of the following parts: a power amplifier, an isolator, a diplexer, a low noise amplifier and an antenna matching circuit. More specifically, in addition to adding F-E tunability, one or more... | 11/09/2004 |
| 6813483 | Method and system for improving noise margin in a receiver circuit A transmitter circuit improves a noise margin for decoding a common mode signal at a receiver circuit. The transmitter circuit includes a common mode signal transmitter and a noise margin enhancement circuit coupled to a transmission line. The common mode signal tra... | 11/02/2004 |
| 6766155 | Fixed termination scheme for differential receiver that compensates for process, voltage, and temperature variations A novel terminating differential bus receiver with automatic compensation for process, voltage, and temperature variation is presented. A termination circuit is connected internal to the integrated circuit to the input of a differential receiver in parallel with a t... | 07/20/2004 |
| 6507728 | Radio transceiver and a method of preventing transmission spurious response In a radio transceiver operating in a time division duplex system, a cancellation use transmission signal which is reverse in phase and equal in amplitude to a leakage transmission signal from an antenna in the signal transmission is supplied to an input ... | 01/14/2003 |
| 6268827 | Method and apparatus for carrying signals having different frequencies in a space-deployed antenna system The present invention provides a method and apparatus for carrying signals having different frequencies in a space-deployed antenna system. When the antenna system is in a first mode, DC power, command information and RF signals (1) are multiplexed via a ... | 07/31/2001 |
| 6163686 | Signal selecting circuit A signal selecting circuit comprises a first switch means connected between a first input terminal and a common output terminal, a second switch means connected between a second input terminal and the common output terminal, a first microstrip line for co... | 12/19/2000 |
| 5930689 | Apparatus and method for producing a plurality of output signals with fixed phase relationships therebetween An apparatus and method produce a plurality of output signals (917-921) with fixed phase relationships therebetween. The apparatus (900) includes a first signal generator (901), a second signal generator (903), and a signal processor (907). The first sign... | 07/27/1999 |
| 5918183 | Concealed mobile communications system A mobile communications system for transmitting or receiving a broadcast signal and designed for mounting on in a vehicle has a transmitter or receiver and one or more antennas electrically connected to the transmitter/receiver. The system is mounted on o... | 06/29/1999 |
| 5826179 | Multi-antenna scanning diversity system A multi-antenna scanning diversity system uses an antenna diversity circuit adjacent to the antenna terminals, but remote from the receiver, whose input sees the antenna signals (A1) through (AN) and whose output provides a received signal selected by the... | 10/20/1998 |
| 5812944 | Mobile speech level reduction circuit responsive to base transmitted signal In a mobile radio communication system where a base station is connected to a public switched telephone network, a hybrid unit and an echo canceler are provided in the base station. A mobile radiotelephone unit receives a base-to-mobile coded speech signa... | 09/22/1998 |
| 5737687 | Self-attenuating RF transceiver system using antenna and modem interfaces and cable link A transceiver system for interfacing digital modems with radio frequency signals including an antenna, an antenna interface system and a modem interface system separated by a cable. The antenna is placed in a location having optimal reception and in close... | 04/07/1998 |
