摘要:
The present invention provides a power transmission/communication system for transmitting power from a reader and/or writer to an IC card by an electromagnetic wave and performing transmission or transmission and reception of a communication signal between the reader and/or writer and the IC card by an electromagnetic wave, wherein the intensity of a magnetic field induced by the electromagnetic wave outputted from the reader and/or writer, i.e., the magnitude of power induced thereby and the time required to transmit the power are controlled.
摘要:
The present invention provides a reader and/or writer for performing both the supply of operating power to an IC card and transmission of a communication signal to the IC card or transmission and reception thereof to and from the IC card, wherein a main coil or a spiral antenna for generating an electromagnetic field for the two or at least power supply, and auxiliary coils or spiral antennas for generating magnetic fields opposite in phase to the electromagnetic field generated by the main coil or spiral antenna to thereby restrain the intensity of the electromagnetic field in the distance are provided side by side.
摘要:
A transmission-reception circuit, including a transmitter circuit and a receiver circuit connected to each end of a transmission line, for transmitting and receiving a signal to another receiver circuit and from another transmitter circuit at the other end across the transmission line, wherein in order to enable logical decision on a receiving signal to be made accurately and secure high reliability in a fully duplex simultaneous two-way communication, power supply lines are laid at opposite ends of the transmission line and threshold voltages for logical decision on a signal received by the receiver circuit are supplied from a power unit used for the transmitter circuit and the receiver circuit at the other end of the transmission line.
摘要:
A PLL circuit for generating an AC output signal synchronized with an AC input signal applied thereto with a phase offset with respect to the input signal includes, in one embodiment, a charge pump circuit capable of varying the phase offset depending on the frequency of the AC input signal. In a signal transmission network system including a plurality of nodes coupled to a signal transmission line and distanced from one another by various repeat lengths of transmission path, each node has a repeater including such PLL circuit to suppress jitter caused by individual repeat length of transmission over the transmission line and still remaining in an equalized AC signal in each node.
摘要:
A multiple reproducing repeater station system having a plurality of repeater stations connected in tandem. Each of the repeater stations comprises a logical circuit for decoding data from a pulse-modulated signal transmitted from the preceding repeater station and delivering decoded data to a processing circuit, and a PLL for extracting a clock signal from the pulse-modulated signal. The PLL has an operational response time which is so adjusted as to be different from a data delay time due to a logical operation within the logical circuit.
摘要:
A relay circuit comprise first and second relays having respective terminals at which positive cross-talk of a signal of positive polarity is produced when the other terminals to which the positive polarity signal is applied are in the make and break states, respectively, and third and fourth relays having respective terminals at which negative cross-talk of a signal of negative polarity is produced when the other terminals to which the negative polarity signal is applied are in the make and break states, respectively, wherein with regards to the terminals where the cross-talk occurs, the first and fourth relays are connected to each other and said second and third relays are connected to each other, respectively.
摘要:
The present invention is related to a D/A conversion device, it is provided with a first D/A conversion circuit which receives input of digital data composed of plural bits and outputs a corresponding electric output signal, and a second D/A conversion circuit which receives input of a correction code for the digital data and which outputs a corresponding electric correction signal, wherein the first and second D/A conversion circuits are connected to each other at their respective output terminals so that the electric output signal is corrected by the electric correction signal. The D/A conversion device comprises: storing means 105 for storing correction codes each for one bit of the digital data, the correction codes being determined in correlation with the first D/A conversion circuit 11; and calculating means 107 for performing serial entry and addition of the correction codes each for one bit of the digital data, and outputting a correction code for all bits of the digital data.
摘要:
The present invention is related to a D/A conversion device, it is provided with a first D/A conversion circuit which receives input of digital data composed of plural bits and outputs a corresponding electric output signal, and a second D/A conversion circuit which receives input of a correction code for the digital data and which outputs a corresponding electric correction signal, wherein the first and second D/A conversion circuits are connected to each other at their respective output terminals so that the electric output signal is corrected by the electric correction signal. The D/A conversion device comprises: storing means 105 for storing correction codes each for one bit of the digital data, the correction codes being determined in correlation with the first D/A conversion circuit 11; and calculating means 107 for performing serial entry and addition of the correction codes each for one bit of the digital data, and outputting a correction code for all bits of the digital data.
摘要:
A decoding circuit is operative to decode a differential Manchester code consisting of four symbols "J", "K", "1" and "0" each composed of two consecutive signal elements. For detection of the symbol "J" and consequent determination of the symbol boundary, the decoding circuit has a circuit configuration which takes advantage of the fact that the symbol "K" immediately follows the symbol "J" and three consecutive signal elements, two of which are included in the symbol "J" and one of which is for a symbol immediately preceding the symbol "J", have the same polarity. To prevent an error that a second occurrence of the symbol "J" is detected after completion of detection of the symbol "J", the decoding circuit has an additional circuit configuration which inhibits the detection of the symbol "J" until the symbol "0" or the symbol "1", for example, is detected.
摘要:
A non-aqueous electrolyte battery module of the invention includes: a plurality of non-aqueous electrolyte batteries, a plurality of heat dissipating members, a plurality of heat insulating members, and an exterior casing housing the non-aqueous electrolyte batteries, the heat dissipating members and the heat insulating members, the non-aqueous electrolyte batteries each includes a battery element and a flexible exterior member housing the battery element, the non-aqueous electrolyte batteries are laminated with the heat dissipating members interposed therebetween to form a battery laminate, ends of the heat dissipating members are in tight pressing contact with an inner face of the exterior casing, and the heat insulating members are disposed between the exterior casing and opposite ends of the battery laminate in a laminating direction thereof.