Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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 unit 5 applies 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.

Abstract: 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.

Abstract: 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 23, ten field, compression, inverse discrete-cosine transform multipliers 22, eight selectors 24, eight selectors 25, eight buffers 26, eight sign multipliers 27, a control section, eight adders 28, and eight buffers 29. The control section controls the selectors 24, selectors 25, buffers 26 and sign multipliers 27 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 24, selectors 25, buffers 26 and sign multipliers 27 is thereby selected. The value selected is output after added with the plus sign or the minus sign. The adders 28 add the values output from the selectors 24, selectors 25, buffers 26 and sign multipliers 27.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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 unit 5 applies 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.

Abstract: 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 23, ten field, compression, inverse discrete-cosine transform multipliers 22, eight selectors 24, eight selectors 25, eight buffers 26, eight sign multipliers 27, a control section, eight adders 28, and eight buffers 29. The control section controls the selectors 24, selectors 25, buffers 26 and sign multipliers 27 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 24, selectors 25, buffers 26 and sign multipliers 27 is thereby selected. The value selected is output after added with the plus sign or the minus sign. The adders 28 add the values output from the selectors 24, selectors 25, buffers 26 and sign multipliers 27.