Sharp Kabushiki Kaisha Corporation

Yutaka Ishikawa

Yoshiji Ohta

Kazuya Ishihara

Shinichi Yoshida

Shingo Nomura

A nonvolatile semiconductor memory device in which a memory cell life can be prolonged while making it possible to perform writing in units of bits. When command information represents writing, a comparing unitcompares written data in a target memory cell with write target data to give a comparison result to a write/read control unit, when the comparison result represents matching, the write/read control unitdoes not instruct a decoder unit (A,B, and) to perform writing in the target memory cell, and when the comparison result represents mismatching, the write/read control unitinstructs the decoder unit to write the write target data in the target memory cell.

Nonvolatile semiconductor memory device and driving method therefor

Provided is a nonvolatile semiconductor memory device capable of performing a writing action for a memory cell at high speed. The device includes a memory cell array having a first sub-bank and a second sub-bank each having a plurality of nonvolatile memory cells arranged in a form of a matrix; a row decoder shared by the first sub-bank and the second sub-bank; a first column decoder and a second column decoder provided in the first sub-bank and the second sub-bank, respectively; and a control circuit arranged to execute alternately a first action cycle to perform a programming action in the first sub-bank and a reading action for a programming verifying action in the second sub-bank and a second action cycle to perform the reading action for the programming verifying action in the first sub-bank and the programming action in the second sub-bank.

Nonvolatile semiconductor memory device and method of controlling the same

A wireless image transmission device comprises an encoder 180 which encodes combined image data, and includes quantization means 130 to perform quantization of input data based on a quantization value, and an encoding amount control means to control the encoding amount, comprising: first information portion counting means 100, second information portion counting means 102, first information portion transmission time computation means 105, a second information portion transmission time computation means 110, second information portion transmittable bits computation means 112, untransmitted bits computation means 113, and quantization value computation means 115, so that even when a video bitstream is transmitted using a plurality of modulation methods with different transmission rates, by transmitting in a constant amount of time, bandwidth can be used efficiently.

Wireless image transmission device and image transmission method

The system includes data driven processors each having inputs and outputs. Each processor includes a processing unit processing, according to a program, a data packet having processor specifying information specifying the processor, and an output unit providing a data packet having processor specifying information specifying another processor according to a predetermined condition. The system further includes an input path selecting device and a transmission path device. The input path selecting device has inputs respectively connected to the system inputs, and outputs. The input path selecting device selects an output of the input path selecting device according to the contents of the received data packet and a predetermined condition to provide the data packet therefrom. The transmission path connects the outputs of the input path selecting device and the system outputs, and the inputs/outputs of the data driven processors to each other. The system may further include an output path selecting device. The output path selecting device is provided between the outputs of the processors in the transmission path device and the system outputs and has a plurality of inputs respectively connected to the outputs of the processors and a plurality of outputs respectively connected to the system outputs. The output path selecting device selects an output depending on the processor specifying information of a received data packet and provides the data packet therefrom.

System including plurality of data driven processors connected to each

The digital FM demodulation apparatus includes a sampling unit, a frequency specifying unit, and a demodulated value specifying unit. The sampling unit samples an FM modulated wave at predetermined intervals. The frequency specifying unit specifies a frequency of the FM modulated wave at the time of sampling based on a plurality of sampled values. The demodulated value specifying unit specifies a demodulated value corresponding to the frequency to provide the demodulated value.

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Osaka, Japan

Yutaka Ishikawa