Megachips Technology America Corporation

Kinetic Technologies

Sujan Valiyaka Thomas

Alan Osamu Kobayashi

Ramakrishna Chilukuri

Rahul Kumar Agarwal

Iyothsna Nagaraja

Nobuhiro Yanagisawa

Ali Noorbakhsh

Rajanatha Shettigara

Maurizio Paganini

Ryuichi Moriizumi

Satoru Kumashiro

Ramesh Dandapani

Johnny Garrett

A data transmission method and system for enhanced channel coding efficiency of a DisplayPort interface is disclosed. One method comprises transmitting a plurality of coding units for each micro-packet in each of one or more lanes of a DisplayPort Main Link from a DisplayPort transmitter, wherein each of the coding units comprises: a group of m symbol chunks, each symbol chunk including four 8-bit symbols, wherein m is 2 or 4; and an n-bit code data indicator that precedes the group of m-symbol chunks, wherein n is 2 or 4, and wherein the n-bit code data indicator indicates a content type of the m symbol chunks.

Data transmission method and data transmission system

A data transmission system includes a transmitter having a first switching re-timer and a receiver having a second switching re-timer. The first switching re-timer is configured to double a link rate per lane and halve the number of lanes, and the second switching re-timer is configured to halve the doubled link rate and double the halved number of lanes.

Data transmission system and data transmission method

A data transmission method and system for enhanced channel coding efficiency of a DisplayPort interface is disclosed. One method comprises transmitting a plurality of coding units for each micro-packet in each of one or more lanes of a DisplayPort Main Link from a DisplayPort transmitter, wherein each of the coding units comprises: a group of m symbol chunks, each symbol chunk including four 8-bit symbols, wherein in is 2 or 4; and an n-bit code data indicator that precedes the group of m-symbol chunks, wherein n is 2 or 4, and wherein the n-bit code data indicator indicates a content type of the m symbol chunks.

A data transmission method includes, detecting an incoming link training sequence that is transmitted from an upstream transmitter, generating a marker indicating a timing location of a word included in the incoming link training sequence, generating a self link training sequence based on a local reference clock, adjusting a time difference in the incoming link training sequence and the self link training sequence, and retransmitting an incoming bit stream based on the self link training sequence being matched to the incoming link training sequence.

Data transmission system

A clock generator outputs a processor clock that serves as an operation reference for a processor for use in a content protection system. The clock generator includes a direct digital synthesis and a random number generator. The direct digital synthesizer includes a phase accumulator and outputs the processor clock. The phase accumulator accumulates a setup value in synchronization with a reference clock. The random number generator generates random numbers. The setup value changes based on the random numbers.

Clock generator and processor system

A transmission device includes a converter and a transmitter. The converter converts a plurality of link symbols in DisplayPort (DP) into a data block in Gen 2 in Universal Serial Bus (USB). The transmitter transmits the data block.

Transmission device, DP source device, reception device, and DP sink device

A DisplayPort (DP) High-bandwidth Digital Content Protection (HDCP) version converter that converts an HDCP content protection version from input to output includes a receiver and a transmitter. The receiver receives a serial bit stream transmitted from an upstream device, and decrypts link symbols of the received serial bit stream by use of a decryption unit. The transmitter encrypts, by use of an encryption unit, the link symbols decrypted by the receiver, and converts the encrypted link symbols into a serial bit stream and transmits the serial bit stream to a downstream device. The receiver and the transmitter have the same link configuration.

Growing community of inventors

Pleasanton, CA, United States of America

Sujan Valiyaka Thomas