Hitachi, Ltd.

Hitachi Video and Information Systems, Inc.

Other

Shinichi Obata

Yukio Fujii

Eiji Yamamoto

Hiroaki Shirane

Toshifumi Takeuchi

Hiroshi Shimizu

Masahiko Saito

Hironori Komi

Atsushi Ogino

Jun Maeoka

Nobuaki Kohinata

Osamu Kawamae

Yutaka Nagai

Yuji Hatanaka

Izumi Kimura

Hiroshi Tadokoro

A multiplexed audio data decoder apparatus is provided in which integration of an audio decoder is easy, and has a high flexibility when the number of the formats to be processed is increased or when the specification is changed. In an external ROMthere are accumulated a plurality of decoding program codes corresponding to respective plural methods for compressing and encoding. A controllertransfers the decoding program code corresponding to the method for compressing and encoding after changing thereof, from the external ROMto an internal RAM. A DSPstarts decoding processing by using the decoding program code which is transmitted into the internal RAM

Multiplexed audio data decoding apparatus and receiver apparatus

The invention provides an efficient transfer of video/audio contents recorded by a server in advance for a user to view the contents with a mobile terminal, whereby the user is relieved of troublesome operations. The information processor includes two record means for recording coded video/audio data, the second record means controls already played back data having already been viewed by the user of the data transferred from the first record means, and when data is newly transferred from the first record means, the retransfer means is provided which erases only the already played back data, and transfers the data corresponding to a capacity evacuated by the erasing from the first record means.

Information processor

A multiplexed audio data decoder apparatus is provided in which integration of an audio decoder is easy, and has a high flexibility when the number of the formats to be processed is increased or when the specification is changed. In an external ROMthere are accumulated a plurality of decoding program codes corresponding to respective plural methods for compressing and encoding. A controller meanstransfers the decoding program code corresponding to the method for compressing and encoding after changing thereof, from the external ROMto an internal RAM. A DSPstarts decoding processing by using the decoding program code which is transmitted into the internal RAM

There are provided a cellular telephone device and transmitter for setting a cellular telephone to answering mode and a telephone section to sleep status when communication forbidding information is received, and restoring telephone section operation when there is no communication forbidding information and canceling silent mode and answering mode; and automatically setting silent mode and answering mode when a communication forbidding signal is received, and maintaining the telephone section operation status when there is no communication forbidding information, and canceling silent mode and answering mode.

Cellular telephone device and transmitter to cellular telephone

A multiplexed audio data decoder apparatus is provided in which integration of an audio decoder is easy, and has a high flexibility when the number of the formats to be processed is increased or when the specification is changed. In an external ROM there are accumulated a plurality of decoding program codes corresponding to respective plural methods for compressing and encoding. A controller means transfers the decoding program code corresponding to the method for compressing and encoding after changing thereof, from the external ROM to an internal RAM . A DSP starts decoding processing by using the decoding program code which is transmitted into the internal RAM

A cellular phone which is easy to use featuring a sufficient degree of safety preventing unauthorized use by conducting a minimum degree of required authentication operation which is not perceived by the user. As the user holds the cellular phone by hand, the control unit issues an instruction to temperature obtaining units to start detecting the temperature. The temperature obtaining units measure the temperature at regular intervals, and successively transfer the obtained temperature data to a temperature comparator unit The temperature comparator unit judges whether the temperature data obtained by the temperature obtaining units are lying within a predetermined condition, and issues an instruction to biodata obtaining units to obtain fingerprint data of the user depending upon the result of judgement. The biodata obtaining units obtain the fingerprint data of the user and transfer the obtained fingerprint data to a biodata authentication unit The biodata authentication unit compares the obtained fingerprint data with the fingerprint data of the owner stored in a biodata storage unit and judges whether the user is the proper user.

Cellular phone

A digital signal reproduction device including a data strobe circuit high in margin against noise and rapid in recovery from dropout of data and a digital signal reproduction method performed in such device. The digital signal reproduction device includes a pair of data strobe circuits and a switching circuit for selecting one of the outputs of the pair of data strobe circuits, and a circuit for generating from the received signal a signal to control the switching circuit. The data strobe circuits ensure high reliability of the received signal against noise and a short time from dropout of the received signal to acquisition of a reproduction clock. The data strobe circuit is selectable which is suitable for the reproduction state of the reproduced signal.

Digital signal reproduction devices, integrated circuits for use

An apparatus for recording and reproducing a video signal and a PCM audio data sampled by a sampling frequency being asynchronous to a field frequency of a video signal. The apparatus enables to record and reproduce the digital data formatted at each field. The apparatus includes an address control circuit for switching the number of sample values to be recorded per field and a clock generating circuit. The clock generating circuit provides a VCO for forcibly stopping the switching of the number of the sample values, keeping the number of the sample values constant and generating a sampling clock being synchronous to a field frequency, based on a signal sent from an input terminal for a selecting signal. When recording a different digital data from the PCM audio data, the sampling clock sent from the clock generating circuit is used in the address control circuit.

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Fujisawa, Japan

Shinichi Obata