Himax Technologies, Inc.

Himax Media Solutions, Inc.

Mu-Hsien Hsu

Chih-Haur Huang

Tzung-Ren Wang

The present invention provides a method and apparatus of controlling an operational status of an electronic device which receives data through a HDMI port. The present invention determines whether to wake up the electronic device from the power saving mode according to counting numbers generated based on the transitions of signals within a time period.

Method and apparatus of controlling an operational status of an electronic device

A data receiver and a method for adjusting the same are provided. The data receiver has an equalizer, a clock data recovery unit, an equalizer controller, and a decoder. The equalizer compensates incoming signal according to a configuration, and outputs corrected signal. The CDR unit uses a clock to sample the corrected signal from the equalizer and generates phase information of the clock. The decoder decodes the raw data. Each cycle of the clock is divided into a plurality of phases, and the phase information indicates the one of the phases that the corrected signal sampled therein. In a testing mode, the equalizer controller applies a plurality of setup values to the configuration individually and records the phase information for tuning the configuration. Therefore, the accuracy of the equalizer is improved and the good signal quality is obtained.

Apparatus for data receiving and method for adjusting the same in real time

A method of for accessing a first-in-first-out (FIFO) buffer is provided. The method comprises the following two steps. Firstly, issue a request to access a memory when the amount of the data buffered in the FIFO buffer is more than a threshold. Second, pop the data buffered in the FIFO buffer out to access the memory when the request is granted. If the FIFO buffer is a single-port FIFO buffer, the threshold is set based on the burst length of one burst of data. If the FIFO buffer is a dual-port FIFO buffer, the threshold is set based on the speed at which the data is pushed into the FIFO buffer and the speed at which the data is popped out of the FIFO buffer.

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Tainan County, Taiwan

Mu-Hsien Hsu