Patent application number | Description | Published |
20120314738 | TRANSCEIVER FOR COMMUNICATING SIGNAL ENCODED TO INCLUDE CLOCK INFORMATION - In a transceiver, a clock generator generates a second clock synchronized with a first clock. The second clock has a period corresponding to a duration of one bit of a digital signal. When first transmission data is supplied to the transceiver with being asynchronous to the second clock, a sampling timing generator detects start data of the first transmission data as a start timing, and generates sampling timings based on the first clock in response to the start timing. The sampling timings have intervals each of which is defined to correspond to the period of the second clock. The first sampling timing is spaced from the start timing. A sampling module samples, at each of the sampling timings, the first transmission data, thus generating second transmission data synchronized with the second clock. | 12-13-2012 |
20130034132 | TRANSCEIVER - An encoding circuit encodes a NRZ code into a transmission line code. A decoding circuit decodes the transmission line code into a NRZ code. If an operation-mode specified by a setting signal is a normal-mode, a transmission switching circuit provides transmit-data received from an input terminal to the encoding circuit to output the encoded transmit-data as communication-data from a communication terminal. If the operation-mode is a sleep-mode, the transmission switching circuit outputs the transmit-data received from the input terminal as the communication-data from the communication terminal. If the operation-mode specified by the setting signal is a normal-mode, a reception switching circuit provides the communication-data received from the communication terminal to the decoding circuit to output the decoded communication-data as receive-data from an output terminal. If the operation-mode is a sleep-mode, the reception switching circuit outputs the communication-data received from the communication terminal as the receive-data from the output terminal. | 02-07-2013 |
20130067129 | COMMUNICATION SYSTEM AND SLAVE NODE - In a slave node, a signal processor stores therein wakeup information uniquely defined for the slave node. The signal processor includes a writing unit configured to write the wakeup information into the transceiver at a given timing. A transceiver includes a memory. The wakeup information is written into the memory to be held therein. The transceiver includes a wakeup determiner. The wakeup determiner compares information received via the communication bus with the wakeup information held in the memory if the slave node is operating in the sleep mode, and determines whether the slave node should shift to the wakeup mode according to a result of the comparison. | 03-14-2013 |
20140036987 | DECODER FOR DECODING PWM CODE AND COMMUNICATIONS SYSTEM - A decoder for decoding an input signal coded with a pulse width modulation code as a line code to an output signal in a binary code, has a first memory, a first timer, a determination circuit and a first controller. The information on a duty duration of the PWM code, corresponding to at least one kind of the output signals, is stored on the first memory. The first timer has a capacity to measure the duty duration of the input signal. The determination circuit has a capacity to determining which kind of the output signals corresponds to the input signal, on the basis of the information stored on the first memory and the duty duration measured with the first timer. The first controller has a capacity to updating the information stored on the first memory, on the basis of the determination result and the measured duty duration. | 02-06-2014 |
20140036988 | TRANSCEIVER FOR SERIAL DATA COMMUNICATION UTILIZING PWM ENCODED SIGNAL - Serial data are transmitted between transceivers via a communication path, each bit expressed by a dominant code or a recessive code which vary between dominant and recessive levels, the dominant code having a greater proportion of duration at the dominant level. A device (clock master) can continuously output successive recessive codes to the communication path, in which condition a transceiver can transmit a dominant code by producing an output drive signal which overwrites a part of a recessive code, currently being received from the communication path, to the dominant level. The output drive signal is shaped with a steeper edge slope at a transition from an inactive to an active level than from the active to the inactive level, enabling an increased data transmission rate without increased noise. | 02-06-2014 |
20140140390 | COMMUNICATION APPARATUS FOR TRANSMISSION OF BINARY CODED SIGNAL - A communication apparatus includes a detecting unit, a process performing unit, and a range setting unit. The detecting unit detects a boundary pattern periodically appearing between codes in a binary coded signal transmitted through a transmission line. The boundary pattern is information showing a boundary appearing between codes. The process performing unit performs a process in synchronization with timing of appearance of the boundary pattern. The range setting unit sets an allowance range which is set include timing at which it is estimated that the next boundary pattern appears. The timing is counted from the timing currently detected by the detecting unit. The detecting unit includes a section which detects the timing of appearance of the boundary pattern during the allowance range. | 05-22-2014 |
20140169419 | TRANSCEIVER AND COMMUNICATION APPARATUS TRANSMITTING AND RECEIVING DATA ENCODED BY TRANSMISSION CODE - A transceiver that transmits and receives data used in a communication system, in which the data is encoded by a transmission line code and a signal level of the transmission code changes at a predetermined transition timing in a bit-duration. The transceiver includes: a clock generator that generates an internal clock used for internal circuits; a timing generator that generates, by using the internal clock generated by the clock generator, a timing signal synchronized to a reference clock supplied externally; an encoding circuit that encodes, by using the timing signal generated by the timing generator, a transmission data which is synchronized to the reference clock to be the transmission line code; and a waveform shaping unit that performs a waveform shaping of a waveform at the predetermined is transition timing of the transmission data to be based on the reference clock. | 06-19-2014 |
20150055696 | COMMUNICATION SYSTEM - A communication system performs communication using a pulse width modulation code as a transmission code. The communication system includes a plurality of nodes that are connected via a transmission line to be capable of communicating with each other. Each of the nodes including a driver circuit. The driver circuit includes a transistor that enables and blocks conduction between the transmission line and a ground line. The plurality of nodes includes a master node and a slave node. The master node is one of the plurality of nodes. The slave node is at least one node other than the master node among the plurality of nodes. The master node includes a limiter that restricts, when the transistor of the driver circuit is turned off, changes in a conductive state of the transistor. | 02-26-2015 |