Abstract:
The present invention describes an apparatus and method for optical disk drive signal processing. For improving the bandwidth for signal transmitting between an optical disk drive (ODD) controller and an optical pick-up unit (OPU) via a flexible cable, a physical address pre-processing unit is mounted on the optical pick-up unit of a Optical disk drive. The long settling time problem conventionally due to a voltage change in the writing process can be resolved. The apparatus and method extract the physical address in the high-writing process of the Optical disk drive.
Abstract:
A semiconductor memory device with a function of equalizing voltages of dataline pair. After turning off the word line and before turning on the equalization means, the datalines are precharged and discharged to a supplied voltage and ground, respectively. Using the theory of uniform distribution of charges, the datalines are equalized into VCC/2, that is, a half of the source supply voltage. The interference on a weak voltage VCC/2 generator within the equalization means during the equalization mode is thus avoided. The equalization of voltages on the dataline pair can be achieved within a transient cycle. Complete data can thus be written or read before the next command is given.
Abstract:
A ceramic powder composition, ceramic material, and a multi-layer ceramic capacitor fabricated thereby are provided. The ceramic powder composition includes a main ingredient and an accessory ingredient. The main ingredient is in an amount of 95 to 99 mol %, and includes BaTiO3, and the accessory ingredient is in an amount of 1 to 5 mol %, and consists of oxide Bi2O3—Tio2—XO, where X is selected from a group consisting of magnesium (Mg), vanadium (V), manganese (Mn), and chromium (Cr).
Abstract:
A data retrieving and using method includes following steps: linking a designated website to obtain a corresponding webpage data, retrieving a specific key information of the corresponding webpage data by an information integrating module and/or an information integrating application software, and integrating the specific key information as an information demo zone and a hyperlink to a frame of a user interface.
Abstract:
A method for verifying a server end apparatus, suitable for verifying the identity of a server end apparatus from a client end apparatus, is provided. In the present invention, authentication data is sent to the server end apparatus by the client end apparatus, such that the server end apparatus verifies the authentication data. Afterwards, the server end apparatus must return an initial number, which is preset by the user, to the client end apparatus to verify whether the initial number is correct or not. If the initial number is incorrect, the connection with the server end apparatus is shut down. Therefore, the efficiency for verifying the server end identity is strengthened, so as to enhance the security.
Abstract:
The present invention with an optical disk drive controller and an optical pickup head connected together by a flexible cable is described. The device includes a delay adjusting module located within the first module for delaying a first signal by an amount specified by a calibration signal. The first module transmits the delayed first signal and a second signal through a first signal channel and a second signal channel, respectively, to the second module of the optical pickup head, a monitoring module located within the optical pickup head for receiving and reshaping the delayed first signal and the second signal so as to generate a monitor signal. A calibration signal-generating module is located within the optical disk drive controller for receiving the monitor signal so as to generate the calibration signal.
Abstract:
A write signal control circuit in an optical disk drive for adjusting the duty cycle of the write signals by a duty cycle adjusting unit. The write signal control circuit includes a write signal generator for converting an EFM signal into the write signals according to the write strategy waveform generating rules, a duty cycle adjusting unit for adjusting the duty cycle of each write signal according to adjusting parameters and for outputting adjusted write signals, and a duty cycle detector for detecting the duty cycle of each adjusted write signal and outputting a respective duty cycle control signal. The duty cycle adjusting unit further receives the duty cycle control signal to adapt the adjusting parameters.
Abstract:
A card connector including a base, a housing, a terminal set, a first detecting conductive element, and a slidable unit is provided. The housing is disposed on the base, and defines a receiving space with the base. The terminal set is secured to a certain position of the base. The first detecting conductive element is engaged to the base, and has an end electrically connected to a circuit board. The slidable unit includes a sliding block and a second detecting conductive element. The second detecting conductive element is engaged in the sliding block. The second detecting conductive element includes a first contact portion exposing from the sliding block and being in contact with the housing. The first detecting conductive element is positioned on a moving path of the second detecting conductive element.