A data interface for transferring digital data between a host and a client over a communication path using packet structures linked together to form a communication protocol for communicating a pre-selected set of digital control and presentation data. The signal protocol is used by link controllers configured to generate, transmit, and receive packets forming the communications protocol, and to form digital data into one or more types of data packets, with at least one residing in the host device and being coupled to the client through the communications path. The interface provides a cost-effective, low power, bi-directional, high-speed data transfer mechanism over a short-range “serial” type data link, which lends itself to implementation with miniature connectors and thin flexible cables which are especially useful in connecting display elements such as wearable micro-displays to portable computers and wireless communication devices.

High data rate interface apparatus and method

A communication channel is disclosed comprising a trellis sequence detector for detecting an estimated data sequence from signal sample values. A post processor detects and corrects an error event of the trellis sequence detector by remodulating the estimated data sequence into a sequence of expected sample values, computing samples errors as the difference between the expected samples and signal samples, and correlating the sample errors with error event samples. The communication channel further comprises a Reed-Solomon error correction code (ECC) decoder for decoding a Reed-Solomon codeword in the estimated data sequence in response to the detected error event.

Communication channel employing an ECC decoder enhanced by likely error events of a trellis sequence detector

A method for providing client supported features and capabilities to a host in a mobile display digital interface (MDDI) system, the method comprising the steps of adding at least one field to a client capability packet for the client supported features and capabilities; providing values to each field of the at least one field unique to at least one client in the client capability packet; and transmitting the client capability packet from the at least one client to the host as well as a corresponding apparatus.

High data rate interface

The present invention relates to an apparatus for providing a digital radio link between at least one fixed unit and at least one mobile unit wherein the apparatus comprises a small number of Rake fingers, one or more of which is assigned at any given to perform a searching operation. Whenever a searching Rake finger or fingers finds a path with higher energy than the current lowest Rake finger, the roles of the Rake finger are exchanged.

Apparatus for use in equipment providing a digital radio link between a fixed and a mobile radio unit

A method and system for discovering from a database an object which is confusingly similar with a known object. A database, such as the internet, is searched for objects which, when discovered, may be duplicated and stored. A determination is then made if any object from the database is confusingly similar with a known object. A computer-readable storage medium storing program for causing a processing system to perform the steps of duplicating objects from a database to produce duplicated objects; storing the duplicated produce to produce stored duplicated objects; and determining if any stored duplicated object is confusingly similar with a known object.

System and method for compiling images from a database and comparing the compiled images with known images

A decoder receives frames of data that have been block coded, then convolutionally coded, at a rate of multiple frames per block. As each frame is received, the decoder counts it, stores convolutional code path information, and updates metric values pertaining to the paths. Once per block of frames, the decoder selects a path having the best metric value, convolutionally decodes one block, detects errors from both the block code and path metric, and generates error information. From the error information, the decoder decides whether block synchronization has been acquired or lost, and clears, decrements, or sets the frame count accordingly. If synchronized, the decoder outputs the block and its error information, and updates the path memory in preparation to decode the next block. Otherwise, the decoder prepares to reacquire block synchronization.

Real-time convolutional decoder with block synchronising function

A convolutional code having identical initial and final states is decoded by using the Viterbi algorithm to trace a path starting from a first state and ending at a second state. If necessary, the trace is repeated, starting from the second state, provided the second state is not the same as the first state. The output result is then obtained from the second trace.

Viterbi decoding method and viterbi decoding circuit

A Viterbi decoding method for decoding a received signal, doing an ACS process and a trace back process a first number of times, and doing the ACS process a second number of times and the trace back process the first number of times until the trace back process is complete for all of the bits to be decoded if the tracing back has not already been finished for all bits, the Viterbi decoding method further including: after the trace back processing has finished for all of the bits to be decoded, deciding a fame error based on the result of calculating a Hamming distance between the received signal and re-encoded decoded signal, and possibly changing the first number and/or the second number depending on value stored in a counter which signifies the condition of the frame error for the past several times.

Viterbi decoding method and device thereof

A decoder which is adapted to receive a frame of coded data consisting of multiple slots including intra-frame position information indicating positions of the slots in the frame to decode the coded data, and which adaptively applies appropriate ones of plural error control methods depending on the position of the slots in the frame. An estimated value of the intra-frame position information of a current slot and a fixed amount of variation per slot of the intra-frame position information are generated in accordance with an estimated value of the intra-frame position information of an immediately preceding slot. Synchronization is established between a received value and the estimated value of the intra-frame position information. An error control method to be applied to the current slot in the synchronous state of the received value and the estimated value is determined in response to the estimated value of the intra-frame position information of the current slot generated. The decoder can achieve error control of received data correctly even if an error occurs with the received value of the intra-frame position information.

Decoder with an error control adaptively applied on the basis of the estimated position of a slot in a frame

PURPOSE:To decode a convolution code in real time when the convolution code to be transmitted in dispersion in plural frames is decided based on the Viterbi decoding algorithm. CONSTITUTION:A Viterbi decoding processing is divided into a path information decision processing and a decoding value confirmation processing. Every time an SACCH frame is received, a path information decision section 14 conducts the path information decision processing. When an NVTB representing the number of times of execution reaches a distributed frame number 11, a decoding value confirmation section 17 conducts the decoded value confirmation processing. When a decoded signal obtained by the processing has an error, a synchronization processing section 19 decrements the NVTB by one. Thus, every time a frame is received in this case, the decoding confirmation processing is conducted. When no error is in existence, a routine processing section 20 sets the NVTB to 0. Thus, in this case, the decoded value confirmation processing is conducted every time the path information decision processing is conducted for 11 times.

Decoder for convolution code dispersion transmitted

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