Sony Computer Entertainment Inc.

Sony Corporation

Rajesh Kumar Dixit

Makoto Tanaka

Toru Akazawa

Kazushi Sato

Hiroshi Sugawara

Masami Goseki

Takao Terao

In the disclosed invention, correlation information expressing the correlation between a plurality of operation terminal devices and information operable therethrough is generated, and such correlation information is output to the operation terminal devices. Such present invention allows the operators of the operation terminal devices to readily recognize the correlation between the operation terminal devices and information operable therethrough among information handled on an information processing devices.

Information processing system comprising a plurality of operation terminal devices and an information processing device

When a connection is made between a first communication device and a second communication device at a first connector and a second connector, information is generated and exchanged for the purpose of specifying parties to mutual wireless communication. After this information exchange, information is added by a transceiver to data transmitted and received by wireless communication for the purpose of identifying the party to the communication and, by setting the first communication device and the second communication device so that they respond only to data having that data added thereto, one-to-one communication between the first communication device and the second communication device is achieved. One-to-many communication between a first communication device and many second communication devices is also provided.

Method for exchanging information between communication devices performing wireless communication

It is targeted to prevent picture quality deterioration in the output picture information proper to the interlaced scanned picture and that ascribable to interlaced scanning. To this end, a decimating inverse discrete cosine transform unitapplies inverse orthogonal transform to four low-range coefficients in the horizontal direction and eight coefficients in the vertical direction among the respective coefficients of an orthogonal transform block of the compressed picture information of the input high resolution picture.

Picture decoding method and apparatus using a 4&#xd7;8 IDCT

A wireless controller is provided with at least two power supplies. The internal components of the controller are classified into at least two groups in accordance with the degrees of functional importance or the power consumptions of the components. The power supplies separately supply electric power to the respective groups of the components. Thus, the power supply to components with high degrees of functional importance or low power consumptions is ensured for a long time.

Wireless controller and power supply method thereof

An inverse discrete-cosine transform apparatus that is simple in structure and can yet output pixel data items different in resolution. The apparatus comprises eight inverse discrete-cosine transform multipliers , ten field, compression, inverse discrete-cosine transform multipliers , eight selectors , eight selectors , eight buffers , eight sign multipliers , a control section, eight adders , and eight buffers . The control section controls the selectors , selectors , buffers and sign multipliers in accordance with whether the input discrete-cosine block has been subjected to field division and where the discrete-cosine coefficients are located in the block. One of the values input to the selectors , selectors , buffers and sign multipliers is thereby selected. The value selected is output after added with the plus sign or the minus sign. The adders add the values output from the selectors , selectors , buffers and sign multipliers . The buffers store the values output from the adders

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Tokyo, Japan

Rajesh Kumar Dixit