Abstract:
PROBLEM TO BE SOLVED: To solve the problems that a memory card having low power consumption and high speed access capability is necessary, however, it is necessary to have backward compatibility with existing protocols such as the MMC, SD and USB specifications in the evolution of memory cards. SOLUTION: A removable electrical interface device for transferring data to and from a host adapted to operate in one of a universal serial bus (USB) compatible mode, a Mu mode and a non-USB compatible mode includes a first row of contact pads capable of supporting at least one of USB Standard-A connection, Mu mode connection or non-USB compatible mode connection, and a second row of contact pads, capable of supporting the Mu mode connection and the non-USB compatible mode connection. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve the mounting of an electronic apparatus in a card reader in a host and to minimize the electronic apparatus. SOLUTION: A removable electronic device has an application module for transferring data to or from a host having a plurality of contact terminals. The device comprises a first row of contact pads, each of the contact pads of the first row including a substantially tapered end, and a second row of contact pads, each of the contact pads of the second row including a substantially tapered end that corresponds to the substantially tapered end of at least one of the contact pads of the first row in an interweaving relationship, wherein the first and second rows of contacts pads are configured to receive the plurality of contact terminals. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a removable electronic device capable of providing high-speed access by consuming low power, and having backward compatibility with an existing protocol of MMC or USB specification. SOLUTION: This removable electronic device includes: a detector for detecting a mode of operation to distinguish among a multimedia card (MMC) compatible mode, a universal serial bus (USB) compatible mode, and a Mu mode; a wrapper for converting data for transfer between the USB compatible mode and the Mu mode; a USB physical layer circuit for transferring data compatible with the USB compatible mode; a USB compatible device controller for controlling data transfer in the USB compatible mode; and an MMC compatible device controller for controlling data transfer in the MMC compatible mode. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a medium storage connection interface device allowing the use of storage equipment of an electronic device as a virtual small memory card. SOLUTION: In this medium storage connection interface device, a connection interface and a wireless module are connected to the electronic device having the storage equipment and an application device, and a buffer stores data from the connection interface and the wireless module for a short time. When receiving a writing command of the data from the application device to the card, the interface device writes the data into the buffer and stores them for a short time, constructs and opens a file into the storage equipment of the electronic device to write the data into the file by wireless connection. When the interface device receives a card data reading command of the application device, the interface device opens the corresponding file of the storage equipment of the electronic device, writes the data of the file into the buffer by the wireless connection, and transfers the data of the buffer to the application device by the connection interface. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a multi-functional electronic peripheral card having the detection function of an extraction/insertion possible card. SOLUTION: At least one function device, a single controller, a host end interface and an extraction/insertion possible card interface are provided. The card detection pin of the host end interface is fixed to a level representing card insertion. There is a spring switch connected with the device detection pin of the controller at the extraction/insertion possible card interface. The controller detects the occurrence and state of the extraction and insertion case of the extraction/insertion possible electronic peripheral card depending on the change of the level of the device detection pin, sets it in a state register inside, and informs a host system through the host end interface. Thus, the host system reads the value of the state register to judge the insertion and extraction state of the extraction/insertion possible electronic peripheral card. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a storage system for a directly and redundantly writable nonvolatile memory without needing the use of a redundant field, and to provide a writing method therefor. SOLUTION: Data to be written is first written in a register, and a part of contents of an MCF value in a logical writing target address obtained after decoding is defined as an actual writing address and the presence/absence of data in a block to which the actual writing address corresponds is determined by a part of the contents of MCF. If the data exist in the corresponding block, a new replaced block is taken out from an alternative table and at least one piece of data in the register is finally written in the replacement block. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a multifunctional electronic peripheral card. SOLUTION: The multifunctional electronic peripheral card has a host interface, a multifunction controller, and a plurality of function devices. Each function device generates and provides an interrupt request to the multifunction controller to request services to be provided and can connect with a host through the host interface. The multifunction controller has an interrupt queue and an interrupted state register. Each one bit of the interrupted state register corresponds to one function device. When one function device transmits an interrupt request, a code representative of the function device is preserved in an interrupt queue, and the corresponding bit of the interrupted state register is set at one only when all the bits of the interrupted state register are set at zero, thereby transmitting the interrupt request to the host. After the host has completed services to the function device, the interrupt queue of the function device is updated to clear the interrupted state register of the function device. COPYRIGHT: (C)2003,JPO