Abstract:
A chain of bidirectional display driver integrated circuits (DICs). The chain has a beginning and an end, the chain includes a plurality of DICs, each of the plurality of DICs including: a direct data input, a relay data input, and a relay data output. Each of the plurality of DICs is configured to combine data received at the direct data input with a stream of bits received at the relay data input to form combined data, and to transmit the combined data through the relay data output.
Abstract:
A method for transmitting an input stream of data across a serial link including a serial channel. The method includes segmenting the stream of data into blocks of bits to form input blocks, and for each input block, calculating a measure of burst error probability, forming an output block and a modification signaling bit from the input block, transmitting the output block, and transmitting the modification signaling bit. The forming of the output block and the modification signaling bit from the input block includes, when the measure of burst error probability exceeds a set threshold: modifying the input block to form the output block, and asserting the modification signaling bit.
Abstract:
A system for reduced-rate predictive DFE. In one embodiment a plurality of sampler-multiplexer blocks, each including two samplers and a multiplexer-latch, controlled by a multi-phase clock, sample the received analog signal one at a time, and the output of each multiplexer-latch, which may represent the value of the last received bit, is used to control the select input of another multiplexer-latch, so that the other multiplexer-latch selects the appropriate one of two samplers, each applying a different correction to the received analog signal before sampling. Each multiplexer-latch is a clocked element that tracks the data input when the signal at its clock input has a first logic level and retains its output state when its clock input has another (i.e., a second) logic level.
Abstract:
A system for generating a local clock, configurable to utilize a forwarded clock and a data stream, or a data stream only, as frequency and phase references. In one embodiment, the system includes a phase locked loop that may be referenced to a forwarded clock, or to a phase reference formed from received data, utilizing a sampler, a crossing sampler, and a bang-bang phase detector. The system includes a local phase recovery loop which may utilize the bang-bang phase detector as part of a phase detector for controlling a phase interpolator, the output of the phase interpolator serving as the local clock for clocking received data.
Abstract:
A system for forwarding a sample rate clock along with data. In one embodiment, a sample rate clock is sent by a transmitter, along with data, to one or more receivers. The receivers sample the received data using the received sampling clock. Delay adjust circuits in the transmitter adjust the delay of each transmitted data stream using delay error sensing and correction implemented in a back channel between the receivers and the transmitter.