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7643018 |
Twisted pair communications line system
A transmission system for transmitting analog color video signals wherein a cable comprising multiple twisted pairs is employed, and certain of these pairs are coupled to carry selected color...
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7643563 |
Transmission line driver
A transmission line driver for generating an output signal to drive a transmission line is disclosed. The transmission line driver includes a voltage driver and a current driver. The voltage driver...
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7639746 |
Hybrid voltage/current-mode transmission line driver
A system that transmits signals through a communication channel. During operation, the system receives a sequence of bits for transmission through the communication channel. While transmitting a...
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7639745 |
Serial data link with automatic power down
A serial data link ( 10 ) includes a transmitter ( 12 ) using a differential transmitter cell ( 20 ) to transmit data using differential signals and a receiver ( 14 ) using a differential receiver...
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7639768 |
Method for improving performance in a mobile device
In the operation of a mobile device (such as a cellular telephone or a PDA, i.e. Personal Digital Assistant), which mobile device includes a mobile terminal and a memory module, certain operational...
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7630446 |
Apparatus and method for automatic polarity swap in a communications system
An automatic polarity swap is implemented in a communications system. Two or more transceivers having differential inputs and outputs are coupled together through an interface, such as a backplane...
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7627043 |
Method and apparatus for transmitting data with reduced coupling noise
A first integrated circuit is coupled to a first connector. A second connector is coupled to the first connector through multiple conductors, in which alternating pairs of conductors are reversed....
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7627044 |
Clock-edge modulated serial link with DC-balance control
A battery powered computing device has a channel configured as a single direct current balanced differential channel. A signal transmitter is connected to the channel. The signal transmitter is...
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7616694 |
Noise free transceiver circuit
A noise free transceiver circuit includes a communication line, a power source line, a ground line, an output transistor having output terminals connected between the communication line and the...
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7616717 |
Coarse timing synchronization
A system for determining the burst start timing of a signal includes logic configured to receive the signal, generate correlation moduli and generate a first timing output based on the correlation...
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7610046 |
System and method for enhancing the performance of wideband digital RF transport systems
A system and method for enhancing the performance of wideband digital RF transport systems is disclosed, which enables the transport of different bandwidth segments on a plurality of wideband...
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7602695 |
System and method for communicating in a multi-unit structure
A method of providing communications over a plurality of sets of twisted pair conductors connected to a plurality of communication devices located in a plurality of units of a multi-unit structure...
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7596079 |
System and method for communicating in a multi-unit structure
A system and method of providing communications over twisted pair conductors connected to a plurality of communication devices located in a plurality of units of a multi-unit structure is provided....
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7596699 |
Battery authentication system
An authentication process for authenticating a battery to a cellular telephone includes the step of receiving a challenge from the cellular telephone at the battery over a single wire conductor. In...
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7593470 |
High-speed communication system with a feedback synchronization loop
In a communications device having a physical layer device and a processing device connected to the physical layer device, the number of input/output (I/O) ports required for communication between...
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7593469 |
OCAP engine module
An apparatus for facilitating use of OCAP (OpenCable™ Applications Platform) standard in a host cable television device, the host cable television device having a connector consistent with...
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7586987 |
High speed data link with transmitter equalization and receiver equalization
A high speed data link includes transmitter equalization and (passive) receiver equalization to compensate for frequency distortion of the data link. In one embodiment, the transmitter equalization...
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7587002 |
Wireless transmitting and receiving device and method
A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal...
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7583703 |
System and method for power injection and out of band communications on shared medium
In one embodiment, in a power injection and out of band communications on a shared medium system, the system is configured to receive a power signal. Concurrently, the system is configured to...
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7583734 |
Two-wire type data communication method and system, controller and data recording apparatus
When a controller transmits a clock pulse of a positive phase as a first transmit signal (a) and a clock pulse of an opposite phase as a second transmit signal (b), the controller modulates the...
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7583747 |
Method of systematic construction of space-time constellations, system and method of transmitting space-time constellations
Space-time code, and methods for constructing space-time codes are provided. The space-time coder performs a respective linear transformation on each of P sets of K modulated symbols of a modulated...
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7580465 |
Low speed access to DRAM
Embodiments provide access to a memory over a high speed serial link at slower speeds than the high speed serial links regular operation. An embodiment may comprise a memory apparatus with a...
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7573839 |
Line driver for an adaptive hybrid circuit
A second output transmission signal (“TX 2 ”) added to a line driver is a scaled version of the main output transmission signal (“TX 1 ”). TX 2 is scaled from TX 1 by a variable scale...
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7573940 |
Data transmission at energy efficient rates
A method and apparatus for data transmission at energy efficient rates. An embodiment of an apparatus includes a port for the transfer of data. The port has an active state in which the port may...
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7573943 |
Interference cancellation system
A DSL or other communication system includes a modem or other communication device having at least one antenna that is configured to collect interference data relating to interference noise...
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7573941 |
Circuit for generating dying gasp signals and electronic device utilizing the same
An exemplary circuit for generating dying gasp signals ( 30 ) includes a power loss detecting circuit ( 320 ), a Digital Signal Processor (DSP) ( 310 ), a unipolar switch circuit ( 330 ), and a...
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7570723 |
Multiple input, multiple output channel, digital receiver tuner
The present invention teaches a compact and highly integrated multiple-channel digital tuner and receiver architecture, suitable for widespread field deployment, wherein each receiver demodulator...
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7567613 |
Test method and apparatus for in-house wiring problems
To test for in-house wiring problems, upstream transmission profiles are tuned automatically and remotely, and reactive downstream parameter modifications indicative for in-house wiring problems...
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7564341 |
Method for transmitting data and power to networked devices
The present technique relates to the distribution of power and data signals throughout a networked system. For example, three-phase power may be conducted to a device over a set of conductors. One...
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7564904 |
Apparatus for and method of detection of powered devices over a network
A novel mechanism for detecting the presence of powered devices over a network. A unique, infinite pseudo-random sequence of pulses are generated and transmitted over the network to the link...
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7564903 |
Method and apparatus for measuring reflected voltage of transformer
A method and apparatus of sampling reflected voltage signal of a transformer is proposed. Sampling signals are used for generating hold voltages by sequentially sampling the reflected voltage from...
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7561625 |
Method and apparatus for crosstalk reduction
A method and apparatus for crosstalk reduction. In one embodiment, an electronic system includes a transmitter and a receiver coupled by a plurality of differential signal paths. A first...
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7542512 |
Communication apparatus and communication method
A communication system includes a synchronizing signal generator that generates a synchronizing signal based on a timing of an alternating waveform in a power line, a data communicating circuit...
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7535964 |
Self-clocked two-level differential signaling methods and apparatus
Self-clocked two-level differential signaling methods and apparatus assuring both clock synchronization and ease of recovery of transmitted data. In accordance with the method, the data is encoded...
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7535963 |
Data processing circuit with a driver and a receiver
A data processing circuit has four signal conductors between a driver and a receiver, and first and second, mutually conducting shield planes. First and second signal conductors form a symmetrical...
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7529326 |
Precise frequency estimation of short data bursts
The invention performs frequency estimation over both the burst preamble, during which known symbols are transmitted, and also during the burst's data packet, which is subsequent to the preamble...
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7529303 |
Methods and apparatus for determining transmission power levels
Methods and apparatus are provided for determining transmission power levels. The power characteristics of a cable modem family are determined by testing cable modems in a cable modem family with...
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7526033 |
Serializer deserializer (SERDES) testing
The various embodiments of the invention provide an apparatus, system and method of testing a serializer and deserializer data communication apparatus (SERDES). The serializer and deserializer data...
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7522670 |
Digital transmission circuit and method providing selectable power consumption via single-ended or differential operation
A digital transmission circuit and method providing selectable power consumption via single-ended or differential operation improves the flexibility of an interface while reducing power consumption...
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7522671 |
Apparatus and method for transmitting and receiving high-speed differential current data between circuit devices
An apparatus and method for an interface for transmitting high speed data between circuits. A driver circuit produces first and second differential currents from a digital signal that drive first...
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7519334 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Multi-mode I/O circuitry supporting low interference signaling schemes for high speed digital interfaces
A multi-mode I/O circuit or cell ( 10 ) is provided for transmitting and receiving data between ICs, where each IC contains at least one of the I/O circuits. Each data link includes transmitter...
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7519130 |
Front end interface for data receiver
A data receiver is provided which includes a front end interface circuit having an alternating current (AC) transmission receiving mode and a direct current (DC) transmission receiving mode. The...
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7515646 |
Method and apparatus for reducing EMI emissions for data signals traveling over a data pathway
An improved data signal electromagnetic emissions system is provided for sending data signals over one or more data pathways. An original data signal is encoded into a set of sideband frequencies...
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7515639 |
Asynchronous data transmitting apparatus
An asynchronous data transmitting apparatus includes data signal transmission lines; two control transmission lines having a minimum delay and maximum delay respectively; a transmitter; and a...
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7515672 |
Digital access arrangement circuitry and method for connecting to phone lines having a DC holding circuit with programmable current limiting
A digital direct access arrangement (DAA) circuitry may be used to terminate the telephone connections at the user's end that provides a communication path for signals to and from the phone lines....
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7512183 |
Differential transmitter circuit
A driver circuit is configured as a frequency compensated differential amplifier having one input coupled to a first data signal and a second input coupled to a second data signal. Each stage of...
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7508881 |
Current mode differential transmission method and system for transmitting three units of data using four signal lines
Provided are a current mode differential transmission method and system for differentially transmitting three units of data using four signal lines. The method includes: dividing the four signal...
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7505520 |
Communication system between integrated circuit devices for propagating data in serial
A semiconductor integrated circuit device serving as a signal source, another semiconductor integrated circuit device serving as a destination and a transmission line form in combination a...
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7505521 |
Data transmission system and method
A data transmission system and method characterized by the use of multiple differential output amplifiers to transmits differential data signals that vary in accordance with control signals derived...
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7500121 |
System and method for obtaining configuration information based on detected parameters of a remote device
A system for remote identification comprising: a power sourcing device; a power ready patch panel comprising a first resistive element and at least one of a second resistive element, a multi-bit...
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