Yen-Tso
Yen-Tso Chen, Taipei TW
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20110007128 | TELECONFERENCE DEVICE COMBINING A CAMERA LENS - A video capturing device includes a USB transmission interface interconnected with a computer to transmit information and a data processing device primarily formed by an H.264 coding module and an audio coding module. Through the H.264 coding module, the audio coding module and a real-time coding-decoding module in the computer, digital video information, an audio signal, a dynamic data and a static data are received respectively. These data are encoded, compressed, and then transmitted through the USB transmission interface to the computer and then to a remote server. When the compressed information from the remote server is received by the computer, the information is decoded by an H.264 decoding module and an audio decoding module in the computer or the data processing device and then transmitted to an external device. By this external data processing device, the present invention can be carried conveniently and applied to any kinds of computers. | 01-13-2011 |
Yen-Tso Chen, Taipei City TW
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20100202499 | WIRELESS RADIO FREQUENCY SIGNAL TRANSCEIVING SYSTEM - A differential radio frequency signal transmitter is provided. The differential radio frequency signal transmitter includes an oscillator, a modulator and an amplifier module. The oscillator generates a pair of differential oscillation signals. The modulator generates a pair of differential modulated signals according to an input signal and the pair of differential oscillation signals. The input signal is a digital signal. When the input signal is at a first state, the modulator outputs the pair of differential oscillation signals as the pair of differential modulated signals, and when the input signal is at a second state, the modulator outputs a constant voltage signal as the pair of differential modulated signals. The amplifier module receives and amplifies the pair of differential modulated signals and generates a pair of differential radio frequency signals, accordingly. | 08-12-2010 |
Yen-Tso Chen, Hsinchu TW
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20130027111 | MULTIPLE-MODULUS DIVIDER AND ASSOCIATED CONTROL METHOD - A multiple-modulus divider and an associated control method are provided. The multiple-modulus divider includes a divisor loader, a multiple-modulus dividing circuit and a modulus controller. The divisor loader downloads a divisor when a download signal indicates a start of a division period. The multiple-modulus circuit includes a plurality of cascaded divisors, and provides an output frequency according to an input frequency and the divisor. The dividers respectively output a plurality of modulus output signals, and each is operable under either a close-loop state or an open-loop state. The modulus controller selects and controls one of the dividers according to the divisor, and ensures the selected divider is maintained at the open-loop state when the division period ends. The download signal corresponds to one of the modulus output signals. | 01-31-2013 |