61 results about "Time domain multiplexing" patented technology

Time dependent iterative reactions are carried out in microscale fluidic channels by configuring the channels such that reagents from different sources are delivered to a central reaction zone at different times during the analysis, allowing for the performance of a variety of time dependent, and / or iterative reactions in simplified microfluidic channels. Exemplary analyses include the determination of dose responses for biological and biochemical systems.

Embodiments of the present invention provide an optical network and switch architecture that provides non-blocking routing from an ingress router to an egress router in the network on a port-to-port basis. The present invention provides routing for fixed and variable length optical data packets of varying types (including Internet Protocol (IP), data, voice, TDM, ATM, voice over data, etc.) at speeds from sub-Terabit per second (Tbps), to significantly in excess of Petabit per second (Pbps). The present invention includes the functionality of both large IP routers and optical cross-connects combined with a unique, non-blocking optical switching and routing techniques to obtain benefits in speed and interconnected capacity in a data transport network. The present invention can utilize a TWDM wave slot transport scheme in conjunction with a just-in-time scheduling pattern and a unique optical switch configuration that provides for non-blocking transport of data from ingress to egress.One embodiment of the present invention includes a router comprising an ingress edge unit with one or more ports and an egress edge unit with one or more ports connected by a switch fabric. The ingress edge unit can receive optical data and convert the optical data into a plurality of micro lambdas, each micro lambda containing data destined for a particular egress edge port. The ingress edge unit can convert the incoming data to micro lambdas by generating a series of short-term parallel data bursts across multiple wavelengths. The ingress edge unit can also wavelength division multiplex and time domain multiplex each micro lambda for transmission to the switch fabric in a particular order. The switch fabric can receive the plurality of micro lambdas and route the plurality of micro lambdas to the plurality of egress edge units in a non-blocking manner. The router can also include a core controller that receives scheduling information from the plurality of ingress edge units and egress edge units. Based on the scheduling information, the core controller can develop a schedule pattern (i.e., a TWDM cycle) to coordinate the time domain multiplexing of micro lambdas at the plurality of ingress edge units and non-blocking switching of the micro lambdas at the switch fabric.

A LADAR apparatus and a method for use in receiving a LADAR signal are disclosed. The apparatus includes an optical pickup capable of picking up a plurality of optical signals; a timing synchronization reference; a time domain multiplexer capable of multiplexing the optical signals into a multiplexed optical signal relative to the timing synchronization reference; and an optical detector capable of detecting the multiplexed optical signal. The method include time domain multiplexing a plurality of LADAR signals into multiplexed LADAR signal; detecting the multiplexed LADAR signal; and demultiplexing the detected LADAR signal.

A method and apparatus for transmitting and receiving a broadcast service in a mobile communication system which outer-codes frames for a plurality of broadcast services and Time Domain Multiplex (TDM)-transmits the outer-coded frames. A transmitter transmits a broadcast parameter message comprising information indicating a specific sub-buffer in which respective broadcast services are stored. A receiver for receiving the broadcast parameter message from the transmitter, and maps the sub-buffer to a corresponding sub-block mask based on the broadcast parameter message. The transmitter TDM-transmits the frames for the plurality of broadcast services per sub-block. The receiver selectively receives frames for a desired broadcast service using the sub-block mask and decodes the selectively received frames.

A vehicle signal light assembly includes: at least one color mixing light source; a support element configured to support the at least one color mixing light source on a vehicle as a signal light; and a controller configured to selectively drive each color mixing light source to generate light of a selected visually perceived color based on a received control signal. In some such embodiments, each color mixing light source of the vehicle signal light assembly comprises a plurality of light emitting diodes (LEDs) of at least two constituent colors. In some such embodiments, the controller is configured to operate each color mixing light source of the vehicle signal light assembly using time domain multiplexing (TDM) to generate the light of the selected visually perceived color. In some such embodiments, the vehicle signal light assembly comprises a taillight assembly. In some of the embodiments, the vehicle light assembly comprises an ambient or auxiliary lighting, or a dashboard lighting assembly.

A method and an apparatus for implementing carrier suppressed data format on conventional OTDM modules is provided. Adaptive phase shifting of optical signals traversing one of the tributaries of an OTDM module is performed with feedback loop control. A tapped portion of the input carrier signal is phase modulated at a frequency fc, and is combined with a tapped portion of the output from the OTDM. A phase shifter controller fed with this combined signal photodetects and band-pass filters the signal around fc to extract the amplitude of the AC component of the envelope of the combined signal, which depends upon the phase difference between successive pulses of the OTDM output. This signal is used to control a phase shifter coupled along one of the tributaries of the OTDM to adjust the phase difference of the signals of the two tributaries so that carrier suppression results.

Circuits, methods, and apparatus that may allow an electronic device to control a power adapter. One example may provide an electronic system where an electronic device may control a power adapter through a communication channel. Data transferred in the communication channel may include the temperature of the power adapter, the charging capability of the adapter, and other types of data. In one example, power and data may share the same two wires, and the power and data may be time-division multiplexed. That is, the two wires may convey power and data at different times. Another example may include circuitry to detect a connection between the electronic device and the power adapter. Once a connection is detected, power may be transferred from the power adapter to the electronic device. This power transfer may be interrupted on occasion to transfer data between the power adapter to the electronic device.

Systems and methods are disclosed which relate to mitigating the detrimental effects of interference to electronic devices from mobile telephones utilizing any form of time-domain multiplexing technology. A wireless transmitter inside the mobile telephone broadcasts a warning transmission which can be received by affected devices. Once the warning transmission is received by an affected device, the device activates a blanking circuit comprising an actuator and a switch or switches. The switches open for the duration of the interference so that the user does not receive undesired output such as: noise through a speaker, noise through a microphone, or other interference with electrical signals.

The present invention provides a system of and a method for multiple transmitters to communicate data over a single uni-directional communication bus. In one form of the present invention, a data communication system using time-domain multiplexing includes a uni-directional current-modulated communication bus, a plurality of sensors coupled to the communication bus, at least one of the sensors capable of detecting the data transmission of a sensor outside of the current loop of the first sensor, the sensors also capable of transmitting data on the communication bus using current loop modulation. In another form of the present invention, a method of transmitting data on a uni-directional communication bus is provided. The method includes the steps of enabling a first device to transmit a data signal on the communication bus, the data transmission followed by an idle period, and the first device including a current sensor; enabling a second device to detect the first device's data transmission and the idle period; and enabling the first device to transmit data upon detecting the idle period, the first device positioned in a first current loop and the second device positioned in a second current loop outside of the first current loop, the second current loop passing through the current sensor of the first device.

Aspects of the disclosure relate to methods and apparatus of time-domain multiplexing (TDM) for reference signals (RS) and data using a modified cyclic prefix. A reference signal (RS) and data are multiplexed either in a single symbol or in two time consecutive symbols that respectively including the RS and data. The cyclic prefix (CP) is added to the single symbol using a portion of the RS or to a first symbol of the two time consecutive symbols using a portion of the RS. The CP may be copied from the RS or the end of the symbol, but not the data, in a manner that affords a virtual Time Division Multiplexing (TDM) of the RS and data before discrete Fourier transform (DFT) spreading is performed in a transceiver to provide lower peak to average power ratios and no Inter-symbol interference.

Systems and methods are disclosed which relate to mitigating the detrimental effects of interference to electronic devices from mobile telephones utilizing any form of time-domain multiplexing technology. A wireless transmitter inside the mobile telephone broadcasts a warning transmission which can be received by affected devices. Once the warning transmission is received by an affected device, the device activates a blanking circuit comprising an actuator and a switch or switches. The switches open for the duration of the interference so that the user does not receive undesired output such as: noise through a speaker, noise through a microphone, or other interference with electrical signals.