A transmitter includes a data stream encoder layer having an output and a pattern generator having a bit pattern output. The transmitter further includes a first multiplexer having first and second inputs and a first multiplexer output. The first input is coupled to the output of the data stream encoder layer, and the second input is coupled to the bit pattern output of the pattern generator. While at least a portion of the data stream encoder layer is powered down, the pattern generator is configured to provide bit patterns on its bit pattern output, a control signal to the first multiplexer is configured to select the second input of the first multiplexer, and the first multiplexer is configured to output the bit patterns on the output of the first multiplexer.

The invention relates to a method for serial data transmission, comprising the steps consisting in computing the running disparity (RD) of a bit stream that is being transmitted; when the running disparity reaches a threshold (T), computing a point disparity on a subsequent frame (S) of the stream; if the point disparity has the same sign as the threshold, inverting the states of the bits of the frame in the transmitted bit stream; and inserting into the transmitted bit stream a polarity bit having a state signalling the inversion.

A receiver decoding apparatus includes a first receiver decoder, a demultiplexer, a first receiver encoder and a second receiver decoder. The first receiver decoder decodes a plurality of N-bit code words received from a transmitter encoding apparatus to generate a plurality of I-bit code words, wherein N and I are both positive integers and N is not equal to I. The demultiplexer alternately deinterleaves and assigns the plurality of I-bit code words to a plurality of output terminals of the demultiplexer. The first receiver encoder encodes a plurality of outputs of the output terminals of the demultiplexer to a fifth digital signal comprising a plurality of J-bit code words and a sixth digital signal comprising a plurality of J-bit code words, wherein J is a positive integer and not equal to I. The second receiver decoder decodes the fifth digital signal and the sixth digital signal.

A transmission device of the disclosure includes: a generator unit that generates, on the basis of a control signal, a transmission symbol signal that indicates a sequence of transmission symbols; an output control unit that generates an output control signal on the basis of the transmission symbol signal; and a driver unit that generates, on the basis of the output control signal, a first output signal, a second output signal, and a third output signal. The generator unit generates the transmission symbol signal on the basis of the control signal, to allow the first output signal, the second output signal, and the third output signal to exchange signal patterns with one another.

A transmission device of the disclosure includes: a generator unit that generates, on the basis of a control signal, a transmission symbol signal that indicates a sequence of transmission symbols; an output control unit that generates an output control signal on the basis of the transmission symbol signal; and a driver unit that generates, on the basis of the output control signal, a first output signal, a second output signal, and a third output signal. The generator unit generates the transmission symbol signal on the basis of the control signal, to allow the first output signal, the second output signal, and the third output signal to exchange signal patterns with one another.

A device includes a first interface to receive a signal from a first communication link, wherein the receive signal includes out-of-band (OOB) information. A detector coupled to the first interface detects the OOB information. An encoder coupled to the detector encodes the OOB information into one or more symbols (e.g., control characters). A second interface is coupled to the encoder and a second communication link (e.g., a serial transport path). The second interface transmits the symbols on the second communication link. The device also includes mechanisms for preventing false presence detection of terminating devices.

The present disclosure provides a method, a system, and an apparatus for data communication in an optical network system. A new encoding scheme is implemented in the following manner: performing 32-bit to 34-bit encoding on a data stream on which 8-bit/10-bit decoding has been performed, performing forward error correction encoding on the data stream on which the 32-bit to 34-bit encoding has been performed, and sending the encoded data stream; or performing forward error correction decoding on a received data stream, and performing 32-bit to 34-bit decoding on the data stream on which the forward error correction decoding has been performed. In this way, a bandwidth resource of a line is saved; line monitoring can be implemented without interrupting a service, which is easy to implement and greatly improves various types of performance of the system.

A display device includes an encoder having at least one translation table, and encoding m (m is a natural number) bits of a data to n (n is a natural number and n>m) bits of a data on a basis of the at least one translation table; a clock recovery circuit configured to recover a clock from the data encoded by the encoder; a decoder configured to decode the n bits of the encoded data to the m bits of the data in accordance with the clock recovered by the clock recovery circuit; an output driver configured to output a voltage in accordance with the data decoded by the decoder; and a display element having a pixel applied with the voltage.

A data processing system including an interface and an encoder. The interface is configured to receive first symbols from one or more ports. The interface is configured to aggregate a predetermined number of the first symbols to provide second symbols. The encoder is configured to (i) generate a header, and (ii) encode the second symbols to generate third symbols, where the header indicates whether the third symbols include a set of control codes. Responsive to the third symbols including the set of control codes, the encoder is configured to generate a pointer for the set of control codes, where the pointer can assume more values than are in the set of control codes.

Implementations described herein include surgical helmet assemblies that have a helmet enclosure shaped to encircle a head of a user. The helmet enclosure retains a fan and includes a brow bar portion at a front of the helmet enclosure that is shaped to extend along a brow or a forehead of the user and having a light positioned therein. The helmet enclosure also includes a stabilizer extending downward from the helmet enclosure in front of the ears of a user, a face shield that is transparent and coupleable to at least the brow bar portion, a headband shaped to extend across an occiput region of the user's head, and a surgical garment for covering at least the head and shoulders of a user in use. The brow bar portion includes vents disposed therein to direct airflow pushed through the helmet enclosure from the fan onto the user. The face shield is coupleable to the helmet enclosure by one or more of a hook and loop fastener on the helmet enclosure or the stabilizer and a post protruding from the brow bar portion.