A data receiver circuit (206) includes first and second interfaces (221) coupled to first and second respective transmission lines (204) The first and second respective transmission lines comprise a pair of transmission lines external to the data receiver circuit The first and second interfaces receive a transmission signal from the pair of transmission lines A common mode extraction circuit (228) is coupled to the first and second interfaces to extract a common-mode clock signal from the received transmission signal A differential mode circuit (238) is coupled to the first and second interfaces to extract a differential-mode data signal from the received transmission signal The extracted data signal has a symbol rate corresponding to a frequency of the extracted clock signal (eg,- the symbol rate may be twice the frequency of the extracted clock signal) The differential mode circuit is synchronized to the extracted clock signal

Signaling with Superimposed Differential-Mode and Common-Mode Signals

Digital Visual Interface (DVI), or High Definition Multi-media Interface (HDMI), data is received from a source (12) and sent to a transmitter chip (16) that includes a transition minimized differential signaling (TMDS) receiver (14) that outputs a 3-data and 1-clock physical signaling stream representing the DVI or HDMI data. This stream is rendered into I and Q data by an ASIC or FPGA (18) and sent to a wireless transmitter (20) for modulation, upconverting, and transmission to, e.g., a nearby display device without ever rendering the data into baseband video on the transmitter chip. The display device has a receiver chip (27) that is essentially the inverse of the transmitter chip (16).

Method and system for wireless digital multimedia transmission

Disclosed herein is a detecting device including a coil electromagnetically coupled to the external, a resonant circuit that includes at least the coil, and a detecting section that superimposes a measurement signal for measuring the Q-factor of the resonant circuit on a power transmission signal transmitted to the coil in a contactless manner and removes the power transmission signal from an alternating-current signal obtained by superimposing the measurement signal on the power transmission signal. The detecting section measures the Q-factor by using the alternating-current signal from which the power transmission signal is removed.

Detecting device, power receiving device, contactless power transmission system, and detecting method

Transmitting a bidirectional, virtual differential signal in addition to other differential signals over physical communication channels. Thus, four signal lines can provide three differential signals, where the virtual differential signal is bidirectional. The virtual differential signal can be provided over one or more of the other physical communication channels. Additional configurations allow for providing a bidirectional DC power supply. Additional configurations allow for providing DC power in addition to data over a reduced number of lines. Selective switching of signal lines can allow backward and forward interoperability with other standard interfaces.

Transmitting multiple differential signals over a reduced number of physical channels

Embodiments of the invention are generally directed to operation of a media interface to provide bidirectional communications. An embodiment of a method includes connecting a first device to a second device via a media interface, the media interface including a communication channels for unidirectional data transmission, the media interface being in compliance with a media protocol. The method further provides for configuring the first device and the second device for bidirectional data transmission, the bidirectional data transmission being conducted according to a network protocol, and transmitting bidirectional data between the first device and the second device via the media interface.

Operation of media interface to provide bidirectional communications

A method of transmitting data in a system including at least one data channel and a separate clock channel is disclosed. The method involves combining a clock signal to be transmitted on the clock channel with a data signal to generate a combined clock and data signal. In one embodiment, the data signal has been generated from data words using an encoding scheme that shifts an energy spectrum of the data signal away from an energy spectrum of the clock signal. In another embodiment, the clock signal has a plurality of pulses each having a front edge and a back edge, and the data signal is modulated onto the clock signal by moving at least one edge (i.e. front or back or both) of the plurality of pulses, thereby to create a combined clock and data signal.

Combining a clock signal and a data signal

Provided is an apparatus for detecting a defect of a circuit pattern which includes a resonator, a first power supply unit connected to one end of the resonator to apply power to the resonator, a probe connected to the other end of the resonator to contact one end of the circuit pattern, a second power supply unit connected to the other end of the circuit pattern to apply a voltage thereto, and a detection portion connected between the resonator and the probe to measure a voltage generated from the circuit pattern and generate a measurement voltage, and determine presence of a defect in the circuit pattern from the measurement voltage.

Apparatus for detecting defect in circuit pattern and defect detecting system having the same

PROBLEM TO BE SOLVED: To provide a method for transmitting data in a system including at least one data channel and a separate clock channel. SOLUTION: This method involves combining a clock signal to be transmitted on the clock channel with a data signal to generate a combined clock and data signal. In one embodiment, the data signal is generated from data words using an encoding scheme that shifts an energy spectrum of the data signal away from an energy spectrum of the clock signal. In another embodiment, the clock signal has a plurality of pulses each having a leading edge and a trailing edge, and the data signal is modulated for the clock signal by moving at least one edge (i.e., leading or trailing edge or both) of the plurality of pulses, thereby creating a combined clock and data signal. COPYRIGHT: (C)2009,JPO&INPIT

Method for combining clock signal and data signal

PROBLEM TO BE SOLVED: To provide the inspection system of an electronic device for inspecting the presence of a connection failure of a circuit pattern such as a semiconductor package, by measuring the return loss of the circuit pattern by an incidence signal from a resonator. SOLUTION: The inspection system of an electronic device comprises a circuit for providing an electrical variable to the first end of the electronic device, a component connected to the second end of the electronic device for changing the given value of the electrical variable, and an inspection section electrically connected to the circuit, to measure the given changed value of the electrical variable, to compare the measured changed value of the electrical variable with a reference value, and then to determine the status of the electronic device. COPYRIGHT: (C)2006,JPO&NCIPI

Inspection system of electronic device

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Papers

Combining a clock signal and a data signal

Apparatus for detecting defect in circuit pattern and defect detecting system having the same

Method for combining clock signal and data signal

Inspection system of electronic device