Mediatek USA Inc.

Techwell, Inc.

Chien-Chung Huang

Tung-Hao Huang

Yuan-Liang Cheng

You-Min Yeh

Feng Yang

Feng Kuo

Chi-Hao Yang

Jao-Ching Lin

Freimann Felix

Chung-Yu Chang

A personal video recorder (PVR) system includes a processing unit, a system memory coupled to the processing unit by a system memory bus, and an insertion module being coupled to the processing unit for inserting a packet into a PVR bit stream according to packet information. During a packet insertion operation, the processing unit is for reading data from the system memory, processing the data to generate the packet insertion information, and directly transferring the packet insertion information to the insertion module. By directly transferring the packet insertion information generated by the processing unit to the insertion module, memory bandwidth requirements of the system memory are reduced, and data access of the system memory is improved.

Personal video recorder having improved data access and method thereof

A validation system includes: a source agent for storing a plurality of test patterns; a drain agent for performing a validation operation according to a test result; and a device under test (DUT). The device under test includes: a first interface electrically connected to the source agent for communicating with the source agent and receiving the test patterns outputted from the source agent; a target system electrically connected to the first interface for processing the test patterns to generate a plurality of test results; and a second interface electrically connected to the target system and the drain agent for communicating with the drain agent and transferring the plurality of test results to the drain agent.

Validation system with flow control capability

A video decoder for decoding a composite video signal. The decoder includes an analog-to-digital converter (ADC), an input resampler, and a Y/C separator, all coupled in series. The ADC receives and digitizes the composite video signal to generate ADC samples. The input resampler receives and resamples the ADC samples with a first resampling signal to generate resampled video samples. The Y/C separator receives and separates the resampled video samples into luminance and chrominance components. The Y/C separator includes a delay element configured to receive the resampled video samples and provide a variable amount of delay. The variable amount of delay can be adjustable from line to line, and is typically based on an approximated duration of a video line. For an NTSC signal, the variable delay is select to be (m&middot;n&plus;m/2) samples, where m is a ratio of frequencies of the resampling signal and a color subcarrier of the composite video signal, and n is an integer selected such that (m&middot;n&plus;m/2) samples most approximate the duration of a video line. For a PAL signal, the variable delay is selected to be (m&middot;n&plus;3m/4) samples.

Multi-standard video decoder

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San Jose, CA, United States of America

Chien-Chung Huang