Abstract: An information distribution server 50 acquires owner information on owners of a plurality of electronic devices 1 charged by a charging device 20 from the electronic devices 1 through the charging device 20, determines a configuration of a group constituted by a plurality of owners who are charging the electronic devices 1 by the charging device 20, by using the plurality of pieces of acquired owner information, acquires information corresponding to the determined configuration of the group from a database 40 that stores information according to a configuration of a group constituted by a plurality of owners, and causes the acquired information to be transmitted to the electronic devices 1 charged by the charging device 20 from the charging device 20.

Abstract: A power supply management method for electronic devices includes: an electric power transmission step of wirelessly transmitting electric power to each of electronic devices 50, 60 placed on a table 10 from a power supplying device 20 contained in the top plate of the table 10; a step of receiving electric power transmitted from the power supplying device 20 by each of the electronic devices 50, 60; and a step of activating the system of each of the electronic devices by the electronic devices 50, 60 when the electric power is received from the power supplying device 20 and an amount of the received electric power is equal to or larger than a threshold value for system activation.

Abstract: A system includes a plurality of electronic apparatuses which have a function of feeding power of a battery to other electronic apparatuses and a function of receiving power from other electronic apparatuses and charging the battery, a management server, and a database. The management server records, in the database, positional information of power feedable electronic apparatuses which permit a power feed to other electronic apparatuses, acquires positional information of a power feed-desiring electronic apparatus which desires a power feed from other electronic apparatuses, specifies a power feedable electronic apparatus in the periphery of the power feed-desiring electronic apparatus using the acquired positional information and the positional information of the power feedable electronic apparatuses in the database, and transmits the positional information of the specified electronic apparatus to the power feed-desiring electronic apparatus.

Abstract: A charging system 100 includes an electronic equipment 1 and a charging device 2. The charging device 2 includes a control unit 22 that controls a magnetic field generated from a variable magnetic field generating unit 25 which generates a variable magnetic field, and the control unit 22 controls a strength of the magnetic field generated from the variable magnetic field generating unit 25, in accordance with a remaining capacity or an available charging free capacity in a battery 11 of the electronic equipment 1 receiving a power transmitted from a feed circuit 21.

Abstract: A charging system 100 includes an electronic equipment 1 and a charging device 2. The charging device 2 includes a control unit 22 that controls a magnetic field generated from a variable magnetic field generating unit 25 which generates a variable magnetic field, and the control unit 22 controls a strength of the magnetic field generated from the variable magnetic field generating unit 25, in accordance with a remaining capacity or an available charging free capacity in a battery 11 of the electronic equipment 1 receiving a power transmitted from a feed circuit 21.

Abstract: A power supply management method for electronic devices includes: an electric power transmission step of wirelessly transmitting electric power to each of electronic devices 50, 60 placed on a table 10 from a power supplying device 20 contained in the top plate of the table 10; a step of receiving electric power transmitted from the power supplying device 20 by each of the electronic devices 50, 60; and a step of activating the system of each of the electronic devices by the electronic devices 50, 60 when the electric power is received from the power supplying device 20 and an amount of the received electric power is equal to or larger than a threshold value for system activation.

Abstract: A system 100 includes a plurality of electronic apparatuses 1 which have a function of feeding power of a battery 11 to other electronic apparatuses and a function of receiving power from other electronic apparatuses and charging the battery 11, a management server 50, and a database 40. The management server 50 records, in the database 40, positional information of power feedable electronic apparatuses 1 which permit a power feed to other electronic apparatuses, acquires positional information of a power feed-desiring electronic apparatus 1 which desires a power feed from other electronic apparatuses, specifies a power feedable electronic apparatus 1 in the periphery of the power feed-desiring electronic apparatus 1 using the acquired positional information and the positional information of the power feedable electronic apparatuses 1 in the database 40, and transmits the positional information of the specified electronic apparatus 1 to the power feed-desiring electronic apparatus 1.

Abstract: An information distribution server 50 acquires owner information on owners of a plurality of electronic devices 1 charged by a charging device 20 from the electronic devices 1 through the charging device 20, determines a configuration of a group constituted by a plurality of owners who are charging the electronic devices 1 by the charging device 20, by using the plurality of pieces of acquired owner information, acquires information corresponding to the determined configuration of the group from a database 40 that stores information according to a configuration of a group constituted by a plurality of owners, and causes the acquired information to be transmitted to the electronic devices 1 charged by the charging device 20 from the charging device 20.

Abstract: In an image processing apparatus to conduct an on-screen display operation, the bus band of an image memory is minimized. The apparatus includes an image memory including a first memory area to store a first image data group of a first image for a background and a second memory area for storing a second image data group of a second image for an on-screen display, a display buffer memory for storing, in a format to be displayed on a display screen, the first image and the second image read from the image memory; and a control section for controlling accesses in the image memory and the display buffer memory, for reading the first image data group from the first memory area and writing the first image data group in the display buffer memory, and for reading the second image data group from the second memory area and writing the second image data group in a specified area of the display buffer memory.

Abstract: A memory control unit adjusts and sets the address of an image data area in the memory space of a memory and the address of a window area adjacent to the memory area, using a memory controller. The memory control unit stores data, other than image data that is supplied, at a specified address location and, when a control signal is sent to the memory, reads out the image data, including data stored in the window area, from the memory. The data that is read out from the window area is inserted into a predetermined position during a blanking period.

Abstract: In an image processing apparatus to conduct an on-screen display operation, the bus band of an image memory is minimized. The apparatus includes an image memory including a first memory area to store a first image data group of a first image for a background and a second memory area for storing a second image data group of a second image for an on-screen display, a display buffer memory for storing, in a format to be displayed on a display screen, the first image and the second image read from the image memory; and a control section for controlling accesses in the image memory and the display buffer memory, for reading the first image data group from the first memory area and writing the first image data group in the display buffer memory, and for reading the second image data group from the second memory area and writing the second image data group in a specified area of the display buffer memory.

Abstract: An image processing apparatus comprises an image memory comprising a first storing area for storing first image data for a background and a second storing area for storing second image data for an on-screen-display; a display buffer memory for storing data in a format used for display based on the first and second image data read from the image memory; and a controller for controlling accesses to the image memory and the display buffer memory, the controller reading the first image data from the first storing area in the image memory and writing the first image data into the display buffer memory and reading the second image data from the second storing area in the image memory and writing the second image data into a designated area in the display buffer memory.

Abstract: A memory control unit adjusts and sets the address of an image data area in the memory space of a memory and the address of a window area adjacent to the memory area, using a memory controller. The memory control unit stores data, other than image data that is supplied, at a specified address location and, when a control signal is sent to the memory, reads out the image data, including data stored in the window area, from the memory. The data that is read out from the window area is inserted into a predetermined position during a blanking period.

Abstract: An image compression system having: an image data supply unit for supplying image data divided into a block unit; a DCT unit for discrete-cosine-transforming the image data in the block unit supplied from the image data supply unit to generate DCT coefficients in the block unit; a coded data generating unit for successively generating coded data of the DCT coefficients at first and second compression factors each time the DCT coefficients of one block are generated by the DCT unit; a counter unit for accumulating the amount of coded data generated at each of the first and second compression factors by the coded data generating unit; and a compression factor estimating unit for estimating a compression factor suitable for generating coded data of a target amount, in accordance with the amounts of coded data accumulated at the first and second compression factors by the counter unit.

Abstract: A discrete cosine transformation processor includes first and second one-dimensional discrete cosine transformation circuits, a pre-processing circuit connected to the input of the one-dimensional discrete cosine processing circuit, and a post-processing circuit connected to the output of the one-dimensional discrete cosine processing circuit. The pre-processing circuit of the first one-dimensional discrete cosine processing circuit and the post-processing circuit of said second one-dimensional discrete cosine transformation circuit includes a shared first butterfly circuit, and the post-processing circuit of the first one-dimensional discrete cosine transformation circuit and the pre-processing circuit of the second one-dimensional discrete cosine transformation circuit includes a shared second butterfly circuit. A look-up table is used for two bits of each of two elements to a DCT matrix. The shared portion of the look-up tables can be extended for use with the forward and inverse DCT processing.