3474 results about "Multiplexer" patented technology

Aspects of this disclosure relate to a bulk acoustic wave device that includes a multi-layer raised frame structure. The multi-layer raised frame structure includes a first raised frame layer positioned between a first electrode and a second electrode of the bulk acoustic wave device. The first raised frame layer has a lower acoustic impedance than the first electrode. The first raised frame layer and the second raised frame layer overlap in an active region of the bulk acoustic wave device. Related filters, multiplexers, packaged modules, wireless communication devices, and methods are disclosed.

The invention relates to an all-fiber sub-hundred femtosecond laser based on an SESAM. The all-fiber sub-hundred femtosecond laser comprises the SESAM, a wavelength division multiplexer, a pumping source, a pumping protector, a gain fiber, a chirp fiber bragg grating, an isolator, a reflector, a compression unit and an autocorrelator. According to the invention, the chirp fiber bragg grating with the dispersion amount of 0.115 ps / nm is adopted to compensate positive dispersion in the cavity, so that mode-locked pulse with the spectral width of 23nm is realized. A transmission-type diffraction grating pair is adopted, the pulse width is compressed to 88fs, and the maximum spectral width 27nm is obtained under the dispersion of 0.00087 ps2 in a near-zero cavity. The condition that the optimal spectral bandwidth of the optimal seed source pulse based on the optical fiber chirped pulse amplification laser should be larger than 15 nm is met, and the compression pulse distortion of the amplifier is reduced. By adopting the linear cavity, the SESAM is adhered to the surface of the single-mode optical fiber patch cord for starting mode locking, so that an all-optical-fiber structure of the system is realized, and the single-mode optical fiber patch cord is suitable for industrial integrated application.

The invention requests to protect a multifunctional FFT (Fast Fourier Transform) hardware acceleration architecture capable of configuring software in real time, which comprises a first sample sequence rearrangement module, a first calculation unit, a second sample sequence rearrangement module, a second calculation unit, a third sample sequence rearrangement module, a butterfly operation circuit, a multiplexer and a dual-port RAM (Random Access Memory) which are sequentially connected end to end, in order to solve the technical problems that in an existing FFT hardware architecture, the operation length is fixed, the function is single, the fftshift function is lacked, and software dynamic configuration cannot be achieved, through software and hardware collaborative design, FFT hardware has operation flexibility, functional diversity and frequency spectrum processing capacity; the method can be widely applied to various digital signal processing scenes such as communication, images, radars and audios.

The invention belongs to the technical field of storage and calculation integration, and particularly relates to a low-bit-width and high-energy-efficiency floating point storage and calculation integrated circuit based on a partial pre-alignment framework. The circuit comprises a memory array, a pre-calculation unit, an adder tree, a configurable arithmetic unit and a normalization unit, and supports mixed precision operation of FP8MACFP4 and FP8MACFP8. The method is characterized in that a partial pre-alignment strategy dominated by an activation value is adopted, the maximum index of the activation value is dynamically counted, the mantissa of the maximum index is aligned, and multiple partial pre-alignment intermediate results are pre-calculated and latched for reuse; in combination with a customized lookup table and a multiplexer, a pre-calculation result is directly selected to replace real-time multiplication and displacement; and through the reconfigurable hardware, the FP8MACFP8 high-precision operation is realized by utilizing the FP8MACFP4 unit combination. According to the method, complete online floating point multiplication and addition operation is realized, and excellent energy efficiency ratio and operation speed are obtained while high precision is kept.

Aspects of this disclosure relate to a bulk acoustic wave resonator and an integrated capacitor. In certain embodiments, the integrated capacitor can be a metal-insulator-metal capacitor in parallel with the bulk acoustic wave resonator. The metal-insulator-metal capacitor can include a portion of a first electrode and a portion of a second electrode of the bulk acoustic wave resonator. At least part of the metal-insulator-metal capacitor is positioned laterally relative to an acoustic reflector of the bulk acoustic wave resonator. Other embodiments of capacitors integrated with a bulk acoustic wave resonator are disclosed. Related filters, multiplexers, radio frequency modules, radio frequency systems, wireless communication devices, and methods are disclosed.

The global event monitoring unit (100) comprises, characterized in that, an accumulator module (110) which comprises at least one mode to receive an input signal for at least one event, a logger module (120) to measure time interval for said at least one event, and a handler module (132) to enable generation of interrupts for the at least events logged by the logger module (120). The handler module (132) is shown within the logger module (120) but the same is possible to be separate. The at least one mode comprises a Port signal Block (102), internal signal Multiplexer (Mux) block (104), a Module Special Function Register (SFR) block (106) and a host (Central Processing Unit (CPU)) (108). The timing measurement between global events is performed precisely along with optimization of the system response time using the measurement results and the system performance evaluation becomes easy and effective.

The present invention relates to an ultra-wideband (UWB) radar sensor chip system architecture. The chip system architecture at least comprises N receiving channels and N transmitting channels, wherein N is a positive integer greater than 1, the N receiving channels form receiving links by means of connecting to a receiver multiplexer, the N transmitting channels form transmitting links by means of connecting to a transmitter multiplexer, and the receiving links and the transmitting links jointly form N groups of transceiving systems. The chip system architecture further comprises a serial peripheral interface, and is adjacent to an external main control chip by means of the serial peripheral interface, so as to drive, by means of a control command, the N groups of transceiving systems to operate on the basis of time division or to operate independently. The present invention introduces the concepts of time division multiplexing and multi-channel synthesis into a radar system, and provides a universal UWB radar sensor chip system architecture with a high integration level, a high performance and a low cost, thereby effectively solving the problems of a radar chip in terms of the sensitivity and transmitting power, improving the detection precision and increasing the detection distance.

A filter multiplexer for variable bandwidth annealing selection is described. The filter multiplexer has multiple pathways, where each pathway comprises a switch and a filter. Each filter has a different cutoff frequency from the other filters. Switches may be cryogenic switches. Each pathway may be communicatively coupled to an external annealing line. Upon receiving a problem, an annealing bandwidth can be selected, set or configured via the multiplexer to operate a quantum processor with a desired annealing schedule. The multiplexer may be used for calibration of a quantum processor by performing a calibration with a large annealing bandwidth, then calibrating the quantum processor by iterating through all available annealing bandwidths from the multiplexer.

An optical transmission system (300) includes a reconfigurable optical add-drop multiplexer (ROADM) device (200) that transmits and receives an optical signal via an optical transmission line (10, 20), and a communication device (400) connected to the ROADM device (200) via the optical transmission line (10, 20). The ROADM device (200) includes an SFP for OSC (250) that converts an electrical signal and an optical signal to each other, and transmits and receives the optical signal via the optical transmission line (10, 20). The communication device (400) includes a response unit (420) that returns back to the ROADM device (200) the optical signal transmitted from the ROADM device (200).

A stream of photons from an optical source at a source wavelength are converted into entangled photon pairs via a spontaneous parametric down-conversion process. This produces time-synchronized signal and idler photon pairs which share a nominal wavelength, twice the source wavelength, a common polarization. The signal and idler individually have wavelengths that are equally offset above and below their nominal wavelength. The photons segregated into two paths based on wavelength via a wavelength division multiplexer. A phase modulator in the signal path alters the phase of the signal photon, while the idler photon's phase remains unchanged. By applying a modulation signal to the phase modulator, a quantum message is encoded on the photon pair. A multi-channel wavelength division multiplexer may be used to support multiple channels, each carrying signal-idler pairs conveying a quantum encoded message.

To suppress spurious responses and also suppress degradation of main responses.SOLUTION: An elastic wave device 100 includes: a supporting substrate 10; a piezoelectric layer 14 formed on the supporting substrate 10; a pair of comb-shaped electrodes 20 provided on the piezoelectric layer 14; a first insulation layer 11 formed between the supporting substrate 10 and the piezoelectric layer 14, the first insulation layer being made of one of polycrystal or amorphous oxide aluminum and polycrystal or amorphous polysilicon; and a second insulation layer 12 formed between the first insulating layer 11 and the piezoelectric layer 14, the second insulation layer being made of aluminum nitride, silicon nitride, silicon carbide, or diamond-like carbon and having a first surface 60 adjacent to the first insulation layer 11 and a second surface 61 adjacent to the piezoelectric layer 14, and the first surface being rougher than the second surface.SELECTED DRAWING: Figure 1

A multiplexer includes first and second filters respectively with a first pass band and a second pass band on a higher frequency side than the first pass band. The first filter includes series-arm resonators and parallel-arm resonators, a resonance band width of at least one of the series-arm resonators is wider than the first pass band, one of the series-arm resonators is coupled closest to a common terminal among the series-arm resonators and the parallel-arm resonators. An anti-resonant frequency of the one of the series-arm resonators is lower than a high frequency end of the second pass band and is lowest among anti-resonant frequencies of the series-arm resonators.

An electronic device of the disclosure includes a plurality of electronic units. Each of the plurality of electronic units includes a pixel circuit and a plurality of tunable circuits. The plurality of tunable circuits is coupled to the pixel circuit. The pixel circuit includes at least one scan transistor, a plurality of de-multiplexer transistors, and a plurality of storage capacitors. The plurality of de-multiplexer transistors is coupled to the at least one scan transistor. The plurality of storage capacitors is coupled to a data line through the at least one scan transistor and the plurality of de-multiplexer transistors.

Disclosed is a display panel in which a ratio of a plurality of areas capable of independently controlling a viewing angle in a display area may be adjusted. The display panel includes pixel blocks including subpixels and multiplexer circuits disposed in a bezel area and individually connected to the pixel blocks. The multiplexer circuits supplies first and second mode control signals to any one of the pixel blocks. The subpixels include a first light-emitting element connected to a driving transistor through a first mode control transistor controlled by the first mode control signal, a second light-emitting element connected to the driving transistor through a second mode control transistor controlled by the second mode control signal, a first lens area disposed on the first light-emitting element, and a second lens area disposed on the second light-emitting element.

The invention provides a communication device, a communication method, a communication system, electronic equipment and a storage medium, which are applied to the technical field of communication and are used for solving the problem that the coverage range and the antenna gain of an existing intelligent antenna cannot meet the use requirements of different use environments. The communication device comprises a multiplexer and a plurality of antenna structures. The multiplexer comprises a common end and a plurality of selection ends. The common end of the multiplexer is coupled with one radio frequency channel, and the common end is used for being switched and conducted with different selection ends in the plurality of selection ends to form a plurality of paths. The multiple antenna structures comprise phased-array antennas, the multiple selection ends comprise first selection ends, and the phased-array antennas are coupled with the first selection ends. The plurality of antenna structures further comprise an omnidirectional antenna, the plurality of selection ends further comprise a second selection end, the omnidirectional antenna is coupled with the second selection end, and / or the plurality of antenna structures further comprise a directional antenna, the plurality of selection ends further comprise a third selection end, and the directional antenna is coupled with the third selection end.

The invention provides a laser gas telemetering system capable of eliminating the influence of distance change, and aims to solve the problem of inaccurate concentration detection caused by different intensity and receiving quantity of optical signals received by a detector when the telemetering system is in different telemetering distances. Optical signals of different telemetering distances are converted into electric signals meeting detection requirements by automatically regulating and controlling the photoelectric conversion gain multiple, and the core is a pre-amplification circuit capable of regulating and controlling the gain multiple and an automatic gain control algorithm. A photoelectric conversion chip OPA380 and a multiplexer MAX4638 are selected to form the pre-amplification circuit capable of regulating and controlling the gain multiple, and the pre-amplification circuit is provided with eight different gain regulation and control gears. According to the automatic gain control algorithm, detection signals are identified and judged according to the voltage amplitude after photoelectric conversion, and the gain multiple of the pre-amplification circuit is regulated and controlled in real time. According to the invention, the detection accuracy can be improved, and guidance is provided for field application of the mobile telemetering system.

The embodiment of the invention provides a hardware control system, method and device, a storage medium and electronic equipment, and the system comprises a processor which is used for generating a hardware control signal of hardware equipment; the information distribution module is used for generating interface address information; the first end of the multiplexer is connected with the information distribution module, the second end of the multiplexer is connected with the processor, the third end of the multiplexer is connected with the receiving end of the interface switching module, and the multiplexer is used for conducting the first end and the third end under the condition that the first control signal is received so as to transmit interface address information; the first terminal is used for conducting a second terminal and a third terminal under the condition of receiving a second control signal so as to transmit a hardware control signal; and the output end of the interface switching module is connected with the plurality of interfaces. According to the method and the device, the problem of relatively low expandability of hardware equipment in related technologies is solved, so that the effect of improving the flexibility and expandability of the system is achieved.

A frontend circuit includes a wide-band filter, a transmit filter, and switches. The wide-band filter passes both the receive frequency band of a first communication frequency band and that of a second communication frequency band which is close to or overlaps that of the first communication frequency band. The transmit filter passes the transmit frequency band of the first or second communication frequency band. The switches are capable of simultaneously bringing, into conduction, at least two of multiple filters including the wide-band filter and the transmit filter. In carrier aggregation using the receive frequency bands of the first and second communication frequency bands, the switches simultaneously bring the wide-band filter and the transmit filter into conduction. Thus, in carrier aggregation using signals of multiple communication frequencies simultaneously in communication, attenuation of signals due to signal leakage in two receive frequency bands, which are close to each other, is suppressed.

The invention discloses a high-tolerance synchronous dual-band pulse laser, and relates to the field of lasers, and the laser comprises a first resonant cavity and a second resonant cavity; the first resonant cavity comprises a first pumping source and an optical annular cavity formed by sequentially connecting a first wavelength division multiplexer, a first thulium-doped optical fiber, a first optical coupler, a first isolator, a second wavelength division multiplexer, a high-nonlinearity saturable absorber, a third wavelength division multiplexer and a first polarization controller; the second resonant cavity comprises a second pumping source and an optical annular cavity which is formed by sequentially connecting a fifth wavelength division multiplexer, a second erbium-doped fiber, a second optical coupler, a second wavelength division multiplexer, a high-nonlinearity saturable absorber, a third wavelength division multiplexer, an electric control adjustable delay line, a fourth wavelength division multiplexer, a second polarization controller and a second isolator, and the fifth wavelength division multiplexer, the second erbium-doped fiber, the second optical coupler, the high-nonlinearity saturable absorber, the third wavelength division multiplexer, the electric control adjustable delay line, the fourth wavelength division multiplexer, the second polarization controller and the second isolator; and the first optical coupler and the second optical coupler respectively output synchronization pulses in the wave bands of 2 microns and 1.5 microns. The device is compact in structure, low in manufacturing cost, convenient to operate and capable of covering the mid-infrared band of 2 microns.

An apparatus, including: a first multiplexer including inputs configured to receive an input data signal and a scan signal, and a select input configured to receive shift control signal; a first latch including an input coupled to an output of the first multiplexer, and a complementary (e.g., inverting) clock input configured to receive a clock signal; a second latch including an input coupled to the output of the first multiplexer, and a non-complementary clock input configured to receive the clock signal; and a second multiplexer including inputs coupled to outputs of the first and second latches, respectively, a select input configured to receive the clock signal, and an output configured to generate an output data or scan signal.

A TE based on polymer optical waveguide 10 ‑TE 00 / TE 20 ‑TE 10 This compact mode converter belongs to the field of photonic integration technology. It consists of a substrate, a lower cladding, a core waveguide, and an upper cladding. The core waveguide is covered by the upper cladding. The lower and upper claddings are EpoClad, and the core waveguide is EpoCore, with the same height. It is constructed by sequentially connecting an input straight waveguide, a first intermediate asymmetric tapered waveguide, a second intermediate asymmetric tapered waveguide, a third intermediate asymmetric tapered waveguide, a fourth intermediate asymmetric tapered waveguide, a fifth intermediate asymmetric tapered waveguide, an output symmetric tapered waveguide, and an output straight waveguide. When passing through the intermediate asymmetric tapered waveguide, different mode components propagate with different effective lengths, causing different phase changes, ultimately resulting in the target mode. This increases channel transmission capacity and can be used in mode add / drop multiplexers (MADMs) and high-order mode filters.

The invention discloses an anti-radiation hardening digital controlled oscillator, a clock data recovery circuit and equipment, and the digital controlled oscillator is characterized in that an anti-radiation hardening circuit unit is connected between a digital-to-analog converter (DAC) and a voltage-controlled oscillator (VCO), and comprises a voltage copying unit and a multiplexer; the voltage copying unit is used for copying a control voltage signal output by the digital-to-analog converter DAC, generating a copying voltage signal, sending the copying voltage signal to the multiplexer, and switching the output of the multiplexer from the control voltage signal to the copying voltage signal when the digital-to-analog converter DAC is subjected to single-particle bombardment. The DCO type clock data recovery circuit aims at solving the problem that a traditional DCO type clock data recovery circuit is prone to being affected by single particles when running in a radiation environment, single particle function interruption is generated, and consequently a space task fails, and the radiation hardening capacity of the DCO type clock data recovery circuit running in the radiation environment is improved.

A method and system is presented for utilizing an automation server and / or a traffic control manager in the content origination workflow to control a multiplexer, data carousel, and / or packager of an interactive television (iTV) system to synchronize the content (audio, video) with the interactive application data. Further, other aspects provide methods and systems for network ad insertion to generate iTV enhanced advertisements by placing a local ad splicer in the network to allow for splicing of both iTV enhanced advertisements and splicing of iTV applications into an MPEG-2 transport stream.

The invention provides a UCIe standard protocol layer data transmission circuit, a related method and a chip, and the circuit comprises a slicing circuit which is configured to segment a data packet from a service port; sending the slice frame and slice description information associated with the slice frame to a framing device; the framing device is configured to fill a flow control unit Flit with the slice frames from the slice devices and slice description information associated with the slice frames, and send the Flit to the deframing device; the frame deframer is configured to determine slice frames belonging to the same service port from the Flit, and send the slice frames and slice description information associated with the slice frames to a packing circuit corresponding to the service port; and the packing circuit is configured to splice the data slices belonging to the same data packet in the slice frame based on the slice description information and output the data packet. The technical problem that extra delay is introduced due to beat insertion due to the fact that large multiplexers need to be introduced in existing protocol layer data transmission of the UCIe standard is solved.

Devices, systems, and methods for sharing an image sensor data stream with an active alignment subsystem are provided. An example device includes an image sensor coupled to a first processor. The first processor is coupled to a multiplexer and the image sensor. The first processor is configured to receive an image stream from the image sensor, transmit the image stream to a second processor via the multiplexer operating in a first state, and transmit the image stream to at least one test port of the data capture device via the multiplexer operating in a second state. The multiplexer is configured to connect the second processor to the first processor when operating in the first state, and connect the at least one test port to the first processor when operating in the second state. Responsive to receiving an enable signal, the multiplexer operates in the second state, else the first state.

The invention discloses a scanning high-resolution double-optical-comb spectrum system based on Raman gain modulation. The method is suitable for real-time spectrum detection with a wide spectrum range and high spectral resolution. The system comprises a single-frequency laser and driver, an optical coupler, a mode-locked laser, a rare earth doped amplifier, a wavelength division multiplexer, a Raman gain fiber, a sample to be tested, a photoelectric detector, a data processor and a wavemeter. The single-frequency laser couples part of light to the wavemeter, and the remaining light is divided into two paths to be coupled with the two amplified mode-locked lasers to enter the Raman gain optical fiber for Raman gain modulation and is converted into high-mutual-dryness double optical combs. The double combs pass through a to-be-measured sample in a combined manner, and interference signals are measured by the photoelectric detector and received by the data processor. And meanwhile, the processor sends a tuning signal to the single-frequency laser driver, so that the double combs scan in a wide spectrum range to obtain high-resolution spectrum information. Electrical feedback locking is not needed, and high-precision spectrum acquisition with megahertz resolution in a terahertz range can be completed within a few minutes.

The invention relates to an arrangement for optical distance and / or speed measurement with a mode multiplexer in the coaxial transmission and reception path, wherein a different mode is used for transmission (i.e., light emission or the transmitter) than for the reception path. This eliminates the need for a circulator in the transmission path. The mode multiplexer thus assumes the function of branching the reception channel from the transmission channel and can be integrated as a PIC.

Systems and devices for power multiplexing are described. A device can include a first power input circuit including a first power driver having a first gate that is configured to receive power from a first power input channel and output power to a power output channel. The device includes a second power input circuit including a second power driver having a second gate that is configured to receive power from a second power input channel and output power to the power output channel. The device includes a charge pump connected to the power output channel that generates an output having a voltage greater than a voltage on the power output channel. The device includes a switching circuit connected to the output of the charge pump that is configured to selectively control the first and second power input circuits to output power to the power output channel.

Systems and methods for supporting multiple data rates are presented. A method includes generating a clock signal from a clock source, serializing, by an analog serializer, a data stream in response to the clock signal to output N data in parallel, coupling a pulse generation circuit to the clock signal, wherein a first switch and a second switch electrically communicate with the pulse generation circuit, and coupling a multiplexer to the pulse generation circuit, wherein the multiplexer receives the N data from the analog serializer and selects a subset of the N data when switching operation of the electronic circuit from a first mode to a second mode.

The invention relates to the technical field of optical fiber transmission, and discloses a bidirectional optical fiber transmission system. Comprising a first wavelength division multiplexing / demultiplexing device, a second wavelength division multiplexing / demultiplexing device, a first power amplifier, a second power amplifier, a first preamplifier, a second preamplifier, a first optical fiber switching module, a second optical fiber switching module, a first filter, a second filter, a third filter and a fourth filter. The first optical fiber switching module and the second optical fiber switching module are provided with a first optical fiber or a second optical fiber for transmitting optical signals; according to the technical scheme, automatic switching to the standby optical fiber link is supported when the single optical fiber link fails or the performance is reduced, shunting and combining of wave band signals are achieved through the filter, and the stability and the anti-interference capability of transmission signals are ensured.