摘要:
An apparatus for controlling a display memory for storing decoded picture data is disclosed, that comprises a data dividing portion for dividing decoded picture data as one macroblock in a vertical direction, a write address generator for generating the binary value of a write address necessary for writing the divided picture data to the display memory, a slice counter for counting the number of slice lines of picture data that has been written to the display memory, a rotate-shifter for rotating and shifting the binary value of the generated write address to the left by a first bit number corresponding to the number of slice lines counted, a means for writing the divided picture data to the display memory corresponding to the write address that has been rotated and shifted, a read address generator for generating the binary value of a read address necessary to read picture data from the display memory, a rotate-shifter for rotating and shifting the binary value of the generated read address to the left by a second bit number corresponding to output data of the slice counter, and a means for reading picture data from the display memory corresponding to the read address that has been rotated and shifted.
摘要:
An image data demodulation apparatus comprises an input control portion for turning ON/OFF input of an encoded image data corresponding to a control signal, a detecting circuit for detecting a sequence header from the encoded image data supplied therefrom, a data extracting portion for, when the sequence header is detected, extracting a predetermined data about the kind of image data from the encoded image data, a control circuit for supplying the control signal to the input control portion based on the detected sequence header and the predetermined data so as to control ON/OFF of the input control portion and a demodulation circuit. As a result, if the type of the encoded image data is changed, this is detected and an input is temporarily stopped so as to secure a new memory region corresponding to the image type.
摘要:
In the image decoding apparatus, the maximum absolute value of difference values of adjacent pixel data of each pixel block of image data is obtained as a feature of the image data. An optimum quantizing coefficient is selected for the maximum absolute value of the difference value. With the selected quantizing coefficient, the maximum absolute value is quantized. When the difference values of adjacent pixel data of each pixel block of image data concentrate in the vicinity of "0", they are quantized with a smaller quantizing coefficient. Thus, with an optimum quantizing coefficient, each pixel block of image data can be quantized. Consequently, quantizing errors can be reduced.
摘要:
When stream video image signal are decoded simultaneously, and synchronized so as to be displayed on a screen, it prevents the disturbance of the displayed video image caused by changing the master. The DEMUX 101 separates the each channel video image signal and PCR from the multiplexed stream. The separated video image signal is stored in the input buffer memories 107 through 101. The master selector comprised of the PCR selector 120 and the STC selector 121 select the master. The selected master STC, the comparator 123, the OPF 124 and the VCO125 comprise the PLL. From the VOC 125 the system clock is regenerated, and the synchronizing signal generator 126 generates the decode starting signal and the display synchronizing signal based on the system clock. From the STC counters 103 through 106 the reference time information of each channels are obtained. The decoding controllers 111 through 114 work over the each decoders 115 through 118 to start decoding based on the decode starting signal.
摘要:
There is provided a highly reliable transmission/reception integrated radio-frequency apparatus which can achieve a high communication quality in a cable modem. A reception RF signal is input to a reception system block via an input/output terminal, converted to an intermediate-frequency signal, and output from a terminal. An output terminal of a transmission processing section of a transmission system block is connected to the input/output terminal via an overvoltage protection circuit, a high-pass filter functioning as a countermeasure to overvoltage, and a low-pass filter for suppressing harmonics produced from the high-pass filter.
摘要:
A cleaning blade member includes a cleaning layer and an elastic layer provided on the cleaning layer's back surface. Both are formed of a polyurethane member produced through curing and molding a castable polyurethane composition, the cleaning layer containing a long-chain polyol, a polyisocyanate, and a diamino compound having a melting point ≦80° C., the elastic layer containing a long-chain polyol, a polyisocyanate, a short-chain diol, and a short-chain triol, and has a percent edge drooping ≦7.0%, the cleaning and elastic layers have Young's modulus contribution factors Ra and Rb, respectively. (Rb/Ra)=0.05-6.0. Ra=[TaEa/(Ta+Tb)]. Rb=[TbEb/(Ta+Tb)]. Ea and Eb are Young's modulus of the cleaning and elastic layers, respectively. Ta and Tb represent the thicknesses of the cleaning and elastic layers, respectively, and the overall Young's modulus of the cleaning layer and elastic layer is (Ra+Rb)=5.0-14.0 MPa.
摘要:
There is discolsed a cable modem device capable of reducing unnecessary signals inputted into a circuit substrate which processes signals and signal terminals from the outside and unnecessary radiation generated by the circuit substrate, the device having a hexahedral shield case which shields a circuit substrate, and a plurality of terminals for use in input/output of the signals with respect to the circuit substrate. Each of the terminals has a noise filter function, and is fixed to the shield case.
摘要:
The invention provides an electrophotography polyurethane member which exhibits small temperature dependency of characteristics, excellent mechanical characteristics, and high wear resistance. The cast-type electrophotography polyurethane member produced through hardening and molding a polyurethane composition containing at least polyol, polyisocyanate, and a diamino compound, wherein the diamino compound has a melting point of 80° C. or lower and contains no chlorine atom but contains an aromatic ring in the molecular structure thereof and exhibits a reaction rate slower than that of 2,2′,3,3′-tetrachloro-4,4′-diaminodiphenylmethane under given hardening and molding conditions.
摘要:
A variable length code recording/playback apparatus, which by encoding intra-frame data and inter-frame data in variable length code, records them as recorded codes on prescribed locations of tracks of a recording medium and plays them back, which includes a data rearranger for recording the data in areas to be played back at least two specific speed mode playbacks on the tracks by rearranging prescribed data out of the data encoded in variable length code, a variable length decoder for playing back the data recorded on the recording medium and decoding it in variable length code, a data restorer for controlling and restoring the time series of the output of the variable length decoder to the original data train before the rearrangement, and a decoder for constructing a playback picture from the decoded outputs for several frames in the specific speed mode playback by decoding the output of this data restorer.
摘要:
A recording/reproducing apparatus for a data packet stream having an extractor for extracting data packets of a selected type from an input packet train in which different types of data packets have been time-division multiplexed together. The apparatus also has a recording circuit for recording the extracted data packets, and a reproducing circuit for reproducing the recorded extracted data packets. A dummy packet producer, which produces dummy packets that correspond to data packets that have not been extracted, is also provided. Further, the apparatus has an output circuit that outputs an output data packet train. The output data packet train is produced by combining the reproduced extracted data packets and the dummy packets in accordance with the order in which the different types of data packets are positioned within the input packet train.