Abstract: A data transfer system includes: a processor; a main memory that is connected to the processor; a peripheral controller that is connected to the processor; and a peripheral device that is connected to the peripheral controller and includes a register set, wherein the peripheral device transfers data stored in the register set to a predetermined memory region of the main memory or the processor by a DMA (Direct Memory Access) transfer, and the processor reads out the data transferred to the memory region by the DMA transfer without accessing to the peripheral device.

Abstract: A computer is disclosed that includes a switching part configured to detect connection of an external computer to the computer upon the connection, and to determine, in response to the detection of the connection of the external computer, that the output signal of the external computer be received and output to the output part of the computer.

Abstract: A nonvolatile memory card includes memory card controllers conforming to two or more different specifications, a memory card controller changeover switch configured to enable one of the memory card controllers in response to an indication supplied from an exterior, and a nonvolatile memory that has data therein written from and data therein read to an external device under control of the enabled one of the memory card controllers.

Abstract: A method of creating an electronic document is disclosed that is able to maintain confidentiality and prevent leakage (unauthorized disclosure) of contents of the electronic document.

Abstract: A data transfer system includes: a processor; a main memory that is connected to the processor; a peripheral controller that is connected to the processor; and a peripheral device that is connected to the peripheral controller and includes a register set, wherein the peripheral device transfers data stored in the register set to a predetermined memory region of the main memory or the processor by a DMA (Data Memory Access) transfer, and the processor reads out the data transferred to the memory region by the DMA transfer without accessing to the peripheral device.

Abstract: A bus converter is disclosed that converts a signal of a synchronous bus into a signal of an asynchronous bus. The bus converter includes a control signal generation unit that generates n control signals synchronized at different timings of a predetermined synchronization signal, where n is an integer of two or more; and an output unit that outputs the signal of the synchronous bus divided into n signal groups based on a control using the n control signals.

Abstract: A nonvolatile memory card includes a nonvolatile memory, two or more nonvolatile memory card controllers, and a common memory controller. The nonvolatile memory stores data. The two or more nonvolatile memory card controllers have properties different from each other. The common memory controller is configured to commonly operate with the two or more nonvolatile memory card controllers to interface data access from each of the two or more nonvolatile memory card controllers to the nonvolatile memory.

Abstract: A nonvolatile memory card, including interface parts for plural kinds of memory cards; interface controllers corresponding to the interface parts for corresponding memory cards; and a switch configured to select a single one of the interface controllers.

Abstract: This patent specification describes a power adapter which includes a power unit including a converter to supply power to a computer and a peripheral unit configured to communicate with the computer and to be controlled by the computer. Further, the power adapter includes a multiplexing-demultiplexing circuit configured to multiplex and demultiplex a power signal with a data or control signal.

Abstract: A memory card includes a control device, a nonvolatile memory, and a program-storage memory, wherein the program-storage memory is arranged to store a plurality of control programs corresponding to respective standards for controlling data access between the nonvolatile memory and an external device.

Abstract: A disclosed memory card includes: a control unit; a nonvolatile memory; and a program memory, wherein the program memory stores control programs for plural standards, the control programs controlling data access between the nonvolatile memory and an external device as a memory card.

Abstract: An information playback system includes a first and second information processor. The first information processor generates digital data based on image or sound and includes an encoder to encode the image or audio signal to digital data, a storage to store the digital data in a storage, a first hardware interface to connect the first information processor to a second information processor, and a storage-class software interface to permit the second information processor to access the storage without using image-class software interface. The second information processor playbacks the digital data and includes a second hardware interface to connect the second information processor to the first information processor, a software interface to mount the storage to a file system, and a playback device to playback the digital data.

Abstract: A bus converter is disclosed that converts a signal of a synchronous bus into a signal of an asynchronous bus. The bus converter includes a control signal generation unit that generates n control signals synchronized at different timings of a predetermined synchronization signal, where n is an integer of two or more; and an output unit that outputs the signal of the synchronous bus divided into n signal groups based on a control using the n control signals.

Abstract: A nonvolatile memory card, including interface parts for plural kinds of memory cards; interface controllers corresponding to the interface parts for corresponding memory cards; and a switch configured to select a single one of the interface controllers.

Abstract: A nonvolatile memory card includes memory card controllers conforming to two or more different specifications, a memory card controller changeover switch configured to enable one of the memory card controllers in response to an indication supplied from an exterior, and a nonvolatile memory that has data therein written from and data therein read to an external device under control of the enabled one of the memory card controllers.

Abstract: A computer is disclosed that includes a switching part configured to detect connection of an external computer to the computer upon the connection, and to determine, in response to the detection of the connection of the external computer, that the output signal of the external computer be received and output to the output part of the computer.

Abstract: A nonvolatile memory card includes a nonvolatile memory, two or more nonvolatile memory card controllers, and a common memory controller. The nonvolatile memory stores data. The two or more nonvolatile memory card controllers have properties different from each other. The common memory controller is configured to commonly operate with the two or more nonvolatile memory card controllers to interface data access from each of the two or more nonvolatile memory card controllers to the nonvolatile memory.

Abstract: This patent specification describes a power adapter which includes a power unit including a converter to supply power to a computer and a peripheral unit configured to communicate with the computer and to be controlled by the computer. Further, the power adapter includes a multiplexing-demultiplexing circuit configured to multiplex and demultiplex a power signal with a data or control signal.

Abstract: A method of creating an electronic document is disclosed that is able to maintain confidentiality and prevent leakage (unauthorized disclosure) of contents of the electronic document.

Abstract: A digital color encoder capable of reducing the aperture distortion of D/A conversion and the waveform distortion of the video signal without resulting in the increase of the consumed electric current. At first, digital signals sampled with a sampling frequency are inputted as original color signals. The digital composite color video signals of the sampling frequency fl are created from those signals by digital signal processing with the combination of matrix circuit, color burst controlling circuit, modulation circuit, addition circuit, and synchronization signal adding circuit, etc. Next, the sampling frequency of the composite color video signal is converted by a sampling frequency converting circuit inserted immediately before the D/A converter. The converted signal is further converted to an analog signal capable of being inputted into the TV set by a D/A converter, and the signal is outputted as a video signal.