Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Sumitomo Electric Industries, Limited

Matsushita Electric Industrial Co., Ltd.

Isao Kato

Tadashi Ono

Tatsuya Adachi

Takuji Maeda

Seiji Nakamura

Kazuya Iwata

Shinichiro Nishioka

Yoichi Hata

Yoshihisa Inagaki

Takumi Asaina

Takanori Miyoshi

Satoru Sakurazawa

Masahiro Nakanishi

Masayuki Toyama

Tsutomu Sekibe

Hiroshi Suenaga

Hideyuki Yamada

Masahiro Nakamura

Osamu Shibata

Toshiyuki Honda

Naoki Ejima

Tetsushi Kasahara

Satoshi Senga

Yoshikazu Isoyama

Hirofumi Nakagaki

Shuhei Sasakura

Shuichi Ohki

A detection device includes: a switch provided to a transmission path that connects a plurality of function units to each other; a measurement unit configured to measure a signal that passes the transmission path, at a first node on a first end side of the switch and at a second node on a second end side of the switch; and a detection unit configured to compare a measurement result at the first node and a measurement result at the second node, which are obtained by the measurement unit, with a reference measurement result which is a measurement result for reference, and detect abnormality regarding the transmission path, based on a result of the comparison.

Detection device, management device, detection method, and detection program

A security system includes an information transmission device, and a security device to which a target device is connectable. The information transmission device and the security device are connected to each other via a network. The information transmission device transmits, to the security device, generation information to be used for generating reference identification information. The security device generates the reference identification information by using the generation information received from the information transmission device via the network. The security device acquires identification information of the target device connected to the security device. The security device compares the acquired identification information with the generated reference identification information, and determines validity of the target device connected thereto, based on a result of comparison.

Security system, vehicle, security device, and validity determination method

A data transfer system includes a slave device, and a host device that is connected to the slave device via at least a power supply line, a clock line, a command line, and a data line. A CMD line is continuously driven to a low level in a period from when the supply of at least a first clock is stopped to when the second clock is supplied (period form timing tto timing t).

Host device connected to slave device and data transfer system wherein voltage levels are driven high or low based on a plurality of clock signals

A detection system includes: a signal output unit configured to output, to a measurement target, a measurement signal that exhibits a predetermined temporal change; a signal measurement unit configured to measure a response signal, to the measurement signal, from the measurement target; a calculation unit configured to calculate an impulse response of the measurement target, based on a measurement result of the response signal measured by the signal measurement unit; and a detection unit configured to detect abnormality regarding the measurement target, based on the impulse response calculated by the calculation unit.

Detection system, detection device, and detection method

A slave device continuously transmits a plurality of tuning blocks to a host device at intervals defined by a clock period between a plurality of data blocks at the time of transmitting the plurality of data blocks and by a clock period defined by a data structure of the plurality of tuning blocks.

Host device, slave device, and data transfer system

When a part of a signal line of a first interface and a part of a signal line of a second interface share a signal line and there is a memory connected to both the interfaces, initialization of the second interface and initialization of the memory are executed in parallel following initialization of the first interface.

Communication device and communication method

A card device according to an aspect of the present disclosure includes: a first interface that connects the card device with a host device. The card device notifies, through the first interface, the host device of whether or not the card device includes a second interface different from the first interface.

Card device, host device, and communication method

A slave device is to be connected to a host device through at least one of a first interface and a second interface. The slave device includes a first terminal group used for the first interface, a second terminal group used for the second interface and a signal input and output part. The first terminal group and the second terminal group are provided at positions identical to terminal groups of another slave device to be connected through a third interface different from the second interface. The signal input and output part supplies a signal to a predetermined terminal in the first terminal group within a predetermined period from supply of power to the slave device, the signal notifying the host device whether the second terminal group is compliant with the second interface.

Slave device and host device

A functional device can communicate with an access apparatus through wireless communication. At least one additional device can be connected to the functional device. The functional device includes an access controller that performs an initialization process of the additional device to obtain characteristic information of the additional device from the additional device, before establishing communication between the access apparatus and the functional device, a memory that stores the obtained characteristic information, a communication unit that performs transmission and reception of data with the access apparatus, and a communication controller that transmits the characteristic information stored in the memory to the access apparatus without performing an initialization process of the additional device, upon establishment of communication with the access apparatus by the communication unit.

Functional device, access system, and communication establishing method

An access deviceincludes an access speed information partfor informing an access speed required for data recording by the access deviceto a nonvolatile memory deviceThe nonvolatile memory device includes an access condition determination partfor determining an access condition required for meeting the informed access speed and an access area determination unitfor determining an access area according to the determined access condition. The access deviceinforms the required access speed to the nonvolatile memory devicein advance so that the access condition determination partand the access area determination partin the nonvolatile memory devicerealize data recording which meets the access speed informed in advance upon the data recording. Thus, it is possible to access all the nonvolatile memory devices at a desired speed regardless of difference in characteristics of the recording speed of each of the nonvolatile memory devices.

Nonvolatile memory device, access device, and nonvolatile memory system

In a communication system in which data is transmitted and received in synchronization with a clock signal, a peripheral device cannot transfer data to a host device when the host device stops outputting the clock signal and thus the peripheral device cannot promptly transmit an interrupt request to the host device. A peripheral device transmits an interrupt request to a host device using a signal line for a clock signal when the clock signal output has been stopped. The host device receives the interrupt request, and resumes outputting a clock signal to enable data transmission and reception to and from the peripheral device. This enables the peripheral device to transmit an interrupt request to the host device promptly when the output of the clock signal from the host device has been stopped.

Enabling a peripheral device to transmit a request for interrupt processing to a host when no clock signal is output from the host device

A host device and a slave device are set to a full-duplex mode by temporarily switching the communication direction of a first transmission channel or a second transmission channel after completing transmission and reception of a predetermined number of data packets in the half-duplex mode. The host device or the slave device can thus transmit an interrupt request, such as a request associated with a wait status or a busy status, to its communication target using the temporary full-duplex mode. This enables the host device or the slave device to process such an interrupt request during high-speed data transfer performed in the half-duplex mode.

Interface device, communications system, non-volatile storage device, communication mode switching method and integrated circuit

A data communication system for starting transmission and reception of target data for processing upon recognition that switching between communication modes is completed. The data communication system includes a master communication device and a slave communication device that continuously perform, at a time of switching from half-duplex communication to full-duplex communication, (i) a handshake using a directional control code indicating the switching and a preamble code indicating completion of the switching and (ii) a handshake using the preamble code and an acknowledge code indicating receipt of the preamble code, whereby each of the devices recognizes that the switching between communication modes by the opposite device is completed and starts transmission and reception of the target data.

Data communication system, communication device, and communication method

When an access device accesses a nonvolatile memory device, the nonvolatile memory device or the access device detects or calculates a temperature T of the nonvolatile memory device. A temperature-adaptive control part of the nonvolatile memory device controls an access rate to a nonvolatile memory on the basis of the temperature T. Accordingly, the control part controls the rate so that the temperature T of the nonvolatile memory devices cannot exceed a limit temperature Trisk. In this manner, a nonvolatile memory system can eliminate a risk of a burn when ejecting the semiconductor memory device and can read and write data at a high speed.

Nonvolatile memory device, nonvolatile memory system, and access device having a variable read and write access rate

An electronic apparatus that transmits error information about setting of a block size to a host device includes an interface section that transmits and receives a command, a response and data to and from the host device. When the data is a predetermined length or more, the interface section executes multi-block transmission. Moreover, the electronic apparatus includes a data buffer, and a storage section that stores information about a block size. When the interface section receives a block size setting command transmitted from the host device and the block size is larger than a capacity of the data buffer, it transmits a response including error information about incapability of accepting the block size at the time which has a predetermined relation to the block size setting command.

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Osaka, Japan

Isao Kato