Patent application number | Description | Published |
20090262620 | METHODS AND DEVICES FOR DETECTING WOBBLES ON AN OPTICAL DISC - A device for detecting wobbles on an optical disc is provided, where the device is utilized for generating a wobble signal according to a plurality of detection signals. The device includes an analog signal processing circuit, a pair of analog-to-digital converters (ADCs), and a digital signal processing circuit. The analog signal processing circuit is arranged to perform analog signal processing on the detection signals to generate a plurality of output signals. In addition, the pair of ADCs are arranged to digitalize the output signals to generate a plurality of digital values. Additionally, the digital signal processing circuit is arranged to perform digital signal processing on the digital values and generate an arithmetic output, where the arithmetic output is utilized for generating the wobble signal or utilized as the wobble signal. An associated method for detecting wobbles on an optical disc is further provided. | 10-22-2009 |
20090265521 | PATTERN PROTECTION METHOD AND CIRCUIT - The present invention discloses an address protection method and circuit capable of efficiently protecting inputting addresses from corruption. The predictable order of a series of original addresses is checked and then the correct addresses are generated by correcting the corrupted addresses within the original addresses. The address protection method and circuit according to the present invention can improve the accuracy of the inputting addresses and increase the validity of data in response to the inputting addresses. | 10-22-2009 |
20090274025 | METHODS AND DEVICES FOR CONTROLLING ACCESS TO AN OPTICAL DISC - A device for controlling access to an optical disc includes a control word calculator and a numerically controlled oscillator (NCO). The control word calculator is arranged to calculate a control word corresponding to a radius where the optical disc is accessed. In addition, the NCO is arranged to generate an output frequency according to the control word, wherein the output frequency is utilized for accessing the optical disc. An associated method for controlling access to an optical disc includes: calculating a control word corresponding to a radius where the optical disc is accessed; and generating an output frequency according to the control word, wherein the output frequency is utilized for accessing the optical disc. | 11-05-2009 |
20100124154 | SIGNAL PROCESSING DEVICES AND SIGNAL PROCESSING METHODS - A signal processing device includes a processing circuit and a signal generating circuit. The processing circuit is implemented for determining a position of at least one defective area on an optical storage medium according to a defect signal, and accordingly recording defect position information of the at least one defective area. The signal generating circuit is coupled to the processing circuit, and implemented for generating an output signal according to at least the recorded defect position information of the at least one defective area. | 05-20-2010 |
20110090773 | APPARATUS FOR GENERATING VITERBI-PROCESSED DATA USING AN INPUT SIGNAL OBTAINED FROM READING AN OPTICAL DISC - An apparatus for generating Viterbi-processed data using an input signal obtained from reading an optical disc includes a Viterbi decoding unit and a control circuit. The Viterbi decoding unit is arranged to process the input signal and generate the Viterbi-processed data. In addition, the control circuit is arranged to control at least one component of the apparatus based upon at least one signal within the apparatus. Additionally, the component includes a phase locked loop (PLL) processing unit, an equalizer, and/or the Viterbi decoding unit. An associated apparatus including an equalizer and a Viterbi module is further provided. An associated apparatus including a Viterbi decoding unit and a control circuit is also provided. An associated apparatus including an equalizer, at least one offset/gain controller, and a Viterbi module is further provided. An associated apparatus including an equalizer, a Viterbi module, and a peak/bottom/central (PK/BM/DC) detector is also provided. | 04-21-2011 |
20110090779 | APPARATUS FOR GENERATING VITERBI-PROCESSED DATA - The invention discloses an apparatus for generating a Viterbi-processed data using an input signal obtained from an optical disk, including a Viterbi module and a binary signal enhancing module. The Viterbi module is configured to process the input signal according to a binary signal. The binary signal enhancing module is configured to boost the input signal and generate the binary signal accordingly. | 04-21-2011 |
20110167323 | Error-Correcting Apparatus and Method Thereof - The invention discloses an error-correcting apparatus for decoding an input signal by using a Viterbi algorithm to generate a Viterbi-decoded signal, including an erasure unit and a decoder. The erasure unit is configured to generate at least one logic signal according to at least one path metric difference of path metrics in the Viterbi algorithm, and generate erasure information, wherein the erasure information indicates data reliability of at least one location of the Viterbi-decoded signal. The decoder is configured to decode the Viterbi-decoded signal according to the erasure information. | 07-07-2011 |
20110261668 | DECODING APPARATUS AND METHOD THEREOF - An apparatus for improving decoding accuracy of an equalized signal having a direct current (DC) level obtained from an optical disk is provided. A Viterbi decoder is configured to decode the equalized signal and output a Viterbi-decoded signal. A DC controller is configured to adjust the DC level of the equalized signal such that the equalized signal with the adjusted DC level is decoded. | 10-27-2011 |
20130285943 | APPARATUS AND METHOD FOR EXECUTING TOUCH CONTROLLER FIRMWARE DOWNLOADED FROM EXTERNAL HOST TO CONTROL TOUCH PANEL - An exemplary touch controller chip includes a volatile storage device, an interface unit and a control unit. The interface unit is arranged for receiving touch controller firmware outside the touch controller chip, and storing the received touch controller firmware into the volatile storage device. The control unit is arranged for executing the touch controller firmware stored in the volatile storage device to control a touch panel. In addition, an exemplary electronic device includes a touch controller chip and a host, wherein the touch controller chip has no non-volatile storage device used for storing touch controller firmware, and the host is arranged for transmitting the touch controller firmware to the touch controller chip. | 10-31-2013 |