32 results about "Reference selection" patented technology

This disclosure describes selection of reference video units to be used for interpolation or extrapolation of a video unit, such as a video frame. A decoder may apply a quality-focused mode to select a reference frame based on quality criteria. The quality criteria may indicate a level of quality likely to be produced by a reference frame. If no reference frames satisfy the quality criteria, interpolation or extrapolation may be disabled. Display of an interpolated or extrapolated frame may be selectively enabled based on a quality analysis. A decoder may apply a resource-focused frame interpolation mode to enable or disable frame interpolation or extrapolation for some frames based on power and quality considerations. In one mode, frame interpolation may be disabled to conserve power when reference frames are not likely to produce satisfactory quality. In another mode, the threshold may be adjustable as a function of power saving requirements.

The invention provides a grating lattice anti-counterfeiting mark. The grating lattice anti-counterfeiting mark comprises a mark base layer and a lattice pattern printed on the mark base layer, and the lattice pattern is covered by a grating sheet layer. The generation method of the grating lattice anti-counterfeiting mark includes: an electronic pattern of the lattice pattern is printed on the mark base layer; the grating sheet layer is attached to the lattice pattern in order to form the grating lattice anti-counterfeiting mark; the grating lattice anti-counterfeiting mark is rotated, and images of the grating lattice anti-counterfeiting mark formed in the grating sheet layer with different rotation angles are acquired and uploaded to a server; and the acquired images are respectively associated and bound with code values of the lattice pattern. A generation system of the grating lattice anti-counterfeiting mark comprises a grating lattice anti-counterfeiting mark generating device, a mark shape determination device, a rotation reference selection device, a rotation angle setting device, a rotation path generating device, a rotation platform, an image acquisition device, and a server. According to the grating lattice anti-counterfeiting mark, and the generation method and the generation system thereof, the lattice pattern is identified and read at various angles, and the application range is wider.

The invention provides an intelligent guiding system for a large-scale exhibition hall and an exhibition hall. The system comprises an operation management center, a server, a collection terminal, a mobile terminal, a positioning system and a guiding system; the guiding system comprises a partition passenger flow control module, a route planning module, a road sign indication module and an explanation module, and the partition passenger flow control module, the route planning module, the road sign indication module and the explanation module are all connected with the server; Through the partition passenger flow control module of the guiding system, the number of passenger flow in each partition of the exhibition hall can be monitored; the number of passengers in each partition is reasonably controlled; The problem that the visiting efficiency and effect are influenced due to the fact that too many visiting personnel appear in a certain partition is avoided, the optimal visiting partition can be provided for the visiting personnel, the visiting personnel can reasonably distribute the visiting sequence and time, the most reasonable visiting route can be provided for the visiting personnel for reference selection through the route planning module, and comprehensiveness and high efficiency are achieved.

The invention discloses an evaluation method for searching and optimizing circumferential equal division hole position degree based on polar angle dichotomy, and the method comprises: processing original position information acquired by a measuring device, fitting to obtain the actual hole center position of a part, and calculating to determine the initial pole angle difference of each hole and the rotatable angle range on the premise that the position degree error requirement is met; searching and optimizing is performed through dichotomy, optimal position degree errors of all equal divisionholes meeting the principle of the minimum condition can be obtained rapidly and accurately without tangential reference selection under the condition of undetermined tangential offset directions of the circumferential equal division holes, meanwhile, the whole searching and optimizing process is small in processing data size, and the calculation efficiency is greatly improved.

A semiconductor apparatus including programmability that may allow a SSTL interface or LVTTL interface is provided. A reference configuration circuit (100) may provide a primary reference potential VREF0 and secondary reference potential VREF. Reference configuration circuit (100) may include a bond pad (PAD1), a reference potential generation circuit (1), a control circuit (50), a reference selection circuit (60), and a secondary reference potential generation circuit (70). During a wafer test mode, primary reference potential VREF0 and secondary reference potential VREF may be provided from a potential that may be applied to bond pad (PAD1).

The invention discloses a method for large spur gear profile deviation in-site measurement adopting a precise core rod measuring head, and belongs to the technical field of large gear measurement. The precise core rod measuring head and involute profile of a measured gear keep tangent contact at all times, and the core rod measuring head is moved parallelly in the direction of a straight line which is away from the axis of the measured gear and intersects with the axis of the measured gear. Under the constraint of the profile of the measured gear, the core rod measuring head generates a tiny rotation angle, a displacement and the rotation angle of the core rod measuring head are obtained through measurement, and a profile deviation of the measured gear is finally obtained through a solution. The method solves the problems such as a measurement reference selection difficulty, a large gear inertia and low measurement efficiency which are encountered in measurement of a large gear.

The present invention provides a large-power LED luminous decay compensation integrated circuit. A photoelectric detection unit is connected with a current extraction unit, and the current extraction unit is provided with a bias voltage terminal; a time sequence generation unit is connected with a current extraction integration unit, a voltage sampling unit and a reference voltage selection unit, and the time sequence generation unit is provided with a clock signal terminal and a reset signal terminal; a current extraction integration unit is connected with the voltage sampling unit, and the voltage sampling unit is earthed through an external capacitor; the voltage sampling unit and the reference voltage selection unit are connected with a voltage comparison unit, and the reference voltage selection unit is provided with two bias voltage terminals; and the voltage comparison unit is connected with a waveform shaping unit, the waveform shaping unit is connected with a reference selection unit, and the reference selection unit is provided with a reset signal terminal, an output terminal and two reference voltage terminals. The large-power LED luminous decay compensation integrated circuit effectively improves the illumination intensity attenuation of a large-power LED after usage for a long time and prolongs the actual service life to realize the intelligence and microminiaturization of LED illumination driving.

The invention discloses a boat-carrying information system frequency standard calibrating device, comprising a time service type satellite receiving module and a reference frequency signal conditioning module. The time service type satellite receiving module is in connection with a reference selection module through a self-taming frequency standard module; the reference frequency signal conditioning module is in connection with the reference selection module; the reference selection module is separately in connection with an error multiplier and a frequency measuring module, wherein the error multiplier is separately in connection with the frequency measuring module and a measured frequency signal conditioning module; the frequency measuring module is separately in connection with the measured frequency signal conditioning module and a key display module. The invention also provides a boat-carrying information system frequency standard calibrating method. The boat-carrying information system frequency standard calibrating device can perform field calibration on boat-carrying information system frequency standards, and avoid disassembling a boat-carrying information system and sending the boat-carrying information system to a metering station for calibration; the device requires no higher frequency standard, and can reduce frequency standard calibration time and cost.

A multi-reference quantization device and method for quantizing an input LPC filter, comprises a plurality of differential quantizers using respective, different references, and a selector of a reference amongst the different references of the differential quantizers using a reference selection criterion. The input LPC filter is differentially quantized by the differential quantizer using the selected reference. A device and method for inverse quantizing a multi-reference differentially quantized LPC filter extracted from a bitstream, comprises an extractor from the bitstream of information about a reference amongst a plurality of possible references used for quantizing the multi-reference differentially quantized LPC filter, and a differential inverse quantizer using the reference corresponding to the extracted reference information to inverse quantize the multi-reference differentially quantized LPC filter.

The invention discloses a spinning stabilization weather satellite scanning synchronizer. The synchronizer comprises a reference selection circuit, a simulated phase-locked frequency multiplication circuit, a beta angle compensation pulse generation and correction circuit, a beta angle accumulation error correction circuit and a synchronous control signal generation circuit. The reference selection circuit comprises a filter, a shaper and a one-out-of-four simulation switch. The simulated phase-locked frequency multiplication circuit comprises a phase-locked loop, a loop filter and a 216 frequency divider. The beta angle compensation pulse generation and correction circuit comprises a crystal oscillator, a 223 frequency divider, a monostable trigger and an OR gate chip. The beta angle accumulation error correction circuit comprises a 24 frequency divider, a time delay device, an RS trigger, an AND gate chip and a one-out-of-two simulation switch. The synchronous control signal generation circuit comprises a 12-bit binary-system serial counter, a decoder, and a driving chip. In the invention, the rapid locking of an ultralow frequency input signal is realized, high stability duringworking can be ensured, a pulse compensation function is easy to realize and high compensation precision is guaranteed.

The invention discloses a tapered semiconductor laser based on an annular outer cavity. The tapered semiconductor laser comprises a tapered laser, a diffraction grating, a beam splitter and a total reflection mirror group. The tapered laser comprises a front cavity surface, a rear cavity surface, a ridge waveguide region and a tapered gain amplification region; the diffraction grating is positioned in the light emitting direction of the tapered laser; the beam splitter is positioned in the diffraction light direction of the diffraction grating; the total reflection mirror group transmits lightreflected by the beam splitter to the rear cavity surface of the tapered laser in a steering mode, the tapered laser emits a laser from the front cavity surface to enter the diffraction grating, thelaser is transmitted to the beam splitter for light splitting through diffraction of the diffraction grating, most of the light is directly output, small part of the light is transmitted to the rear cavity surface of the tapered laser in a steering mode through the total reflection mirror group after being reflected, and the light is subjected to power amplification through a reference-selection transverse mode and the tapered gain amplification region of a ridge waveguide region and then is emitted to form circulation. The tapered semiconductor laser based on the annular outer cavity can generate the tunable high-brightness laser with the narrow spectral width while keeping the high light beam quality of the tapered semiconductor laser based on the annular outer cavity.

Scan electrode potential detected by a feedback switch is inputted into a negative-phase input terminal of an amplifier, reference selection potential from a reference-selection-potential-signal generation circuit is inputted into a positive-phase input terminal of the amplifier, and the reference-selection-potential-signal generation circuit delays reference potential of a reference voltage source, thereby scan electrode potential without overshooting components can be achieved.

The invention discloses a system for distinguishing types of license plates, which comprises: a light source, and also sequentially connected: an optical receiver, an optical information analyzer, and a type discriminator; wherein, the light source is used for emitting projected light to the license plate; the optical information analyzer is used for Analyzing the spectral power distribution of the reflected light; the type discriminator judges the type of the license plate according to the distribution of light waves in each frequency band in the spectral power distribution. Among them, the optical information analyzer includes: a filter circuit and a frequency analysis circuit connected in sequence, and the frequency analysis circuit includes a photosensitive element, a current passing circuit and a power analysis circuit connected in sequence, and further, the circuit acquisition circuit can be acquired directly or indirectly The induction current of the photosensitive original. The system can provide effective support and reference for the selection of license plate recognition scheme, with simple structure, high reliability and good use effect.

The invention discloses a redundant reference layout circuit for a magnetic random access memory, which is used for reading a data memory unit of the magnetic random access memory and comprises a reference unit, a current mirror, a control current limiting circuit, a reference selection switch and a comparator, and the reference selection switch selects a reference column in the reference unit, carries out reference average processing through the current mirror to obtain an average potential VP and a magnetic tunnel junction potential VMTJ to be tested of the memory unit, sends the average potential VP and the magnetic tunnel junction potential VMTJ to the comparator for comparison, and reads data in the data memory unit. According to the invention, the problem that a large number of datamemory units taking the bad reference magnetic tunnel junctions as the reference cannot be accurately read due to the existence of the bad reference magnetic tunnel junctions is improved, and the badreference magnetic tunnel junctions are excluded from the final reference, so that the data reading accuracy is improved.

The invention discloses a license plate distinguishing system, comprising: a light source and a light receiver connected in sequence, an optical information analysis device and a type discrimination device; wherein: the light source is configured to emit projected light to the license plate; the light receiver is configured to receive the The reflected light of the license plate on the projected light; the optical information analysis device is configured to analyze the optical information of the reflected light; the type discrimination device is configured to determine the license plate type of the license plate according to the optical information . Wherein, the light information is attribute information of reflected light, specifically, frequency information or frequency change information. Determine the color of the license plate according to the frequency information, and then determine the type, or determine whether the color of the license plate changes according to the frequency change information, and determine the type of the license plate. The system can provide effective support and reference for the selection of the license plate recognition scheme. The system has simple structure, high reliability and good use effect.

The invention relates to sensing techniques using a moving reference. To sense the memory cell (e.g., to sense the signal associated with the memory cell), a first sense component may compare the signal with a first reference value. A reference selector may select a second reference value based on the comparison of the signal with the first reference value. A second sense component may compare thesignal with the second reference value. The logic state of the memory cell may be determined based on the results of the first comparison and the second comparison.