专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20230003906A1 APPARATUS AND METHOD OF CALCULATING POSITION-VELOCITY-TIME RESULTS OF RECEIVER 有权
公开(公告)号：US20230003906A1
公开(公告)日：2023-01-05
申请号：US17379958
申请日：2021-07-19
申请人： Beken Corporation
发明人： Dawei GUO , Pengfei Zhang
IPC分类号： G01S19/42
摘要： A PVT calculation device includes a memory; and one or more processors in communication with the memory configured to perform operations including: receiving observations and ephemerides from satellites to obtain PVT data of the satellites and predicted PVT results of the receiver; setting up observation functions respectively corresponding to the satellites; calculating by a least square solution first estimated PVT results of the receiver based on the observation functions; iteratively eliminating by a Random-Sampling Iterative Kalman Filter (RSIKF) algorithm fault observation functions from the observation functions in an inner cluster until no fault observation functions detected in the inner cluster; calculating by the RSIKF algorithm a second estimated PVT results of the receiver using the observation functions in the inner cluster; and outputting final estimated PVT results of the receiver. The PVT calculation device may calculate the PVT results of the receiver with improved accuracy and stability.

2. 发明授权

US11474260B1 Apparatus and method of generating Weil codes 有权
公开(公告)号：US11474260B1
公开(公告)日：2022-10-18
申请号：US17304098
申请日：2021-06-14
申请人： Beken Corporation
发明人： Weifeng Wang , Jiazhou Liu , Pengfei Zhang , Dawei Guo
IPC分类号： G01S19/30 , G01S19/37 , G01S19/29 , H03K19/21
摘要： A Weil code generator and a method of generating Weil codes with a Weil code length (N) are provided. The Weil code generator includes a plurality of parallel channels (10), a multi-channel read arbiter (20), and two parallel Legendre ROMs (30), which are connected in series. A channel of the plurality of channels stores a current Weil code to demodulate signals from a satellite. The multi-channel read arbiter (20) may determine a win channel from the plurality of channels. The two Legendre ROMs (30) respectively store a first and a second Legendre sequences (LS1, LS2) each having a Legendre sequence length (2N) being double the Weil code length (N). The Weil code generator may generate Weil codes efficiently.

3. 发明申请

US20210068127A1 WIRELESS SPEAKER SYSTEM 有权
公开(公告)号：US20210068127A1
公开(公告)日：2021-03-04
申请号：US16655903
申请日：2019-10-17
申请人： Beken Corporation
发明人： Weifeng Wang , Lulai Chen
IPC分类号： H04W72/12 , H04R3/00 , H04W76/10 , H04B1/38 , H04L5/00
摘要： A wireless speaker system includes a first transceiver and a second transceiver. The first transceiver is configured to establish a first wireless link with a data source for receiving a plurality of data packets, and to establish a second wireless link with a second transceiver for transmitting a set of parameters to the second transceiver to enable the second transceiver to sniff the plurality of data packets from the data source. The first transceiver is further configured to send a second acknowledgment to the data source via the first wireless link upon failure to receive the plurality of data packets from the data source via the first wireless link and upon receiving a first acknowledgment from the second wireless transceiver via the second wireless link.

4. 发明申请

US20180337635A1 METHOD AND CIRCUIT FOR EXCITING A CRYSTAL OSCILLATION CIRCUIT 审中-公开
公开(公告)号：US20180337635A1
公开(公告)日：2018-11-22
申请号：US15635635
申请日：2017-06-28
申请人： Beken Corporation
发明人： Jiazhou Liu , Yunfeng Zhao , Dawei Guo
IPC分类号： H03B5/30
CPC分类号： H03B5/30 , H03B5/32 , H03B2200/0008 , H03B2200/0012 , H03B2200/005 , H03B2200/0074 , H03B2200/008 , H03B2201/0275
摘要： A method and a circuit for exciting a crystal oscillation circuit are disclosed herein. The crystal oscillation circuit comprising: charging, with a charging circuit, a voltage-controlled oscillator; providing, with the voltage-controlled oscillator, an exciting signal; blocking, with a direct current blocking capacitor, direct current from the voltage-controlled oscillator to the crystal oscillation circuit; and exciting, with the exciting signal, the crystal oscillation circuit. The circuit for exciting a crystal oscillation circuit, comprising: a charging circuit; a voltage-controlled oscillator coupled to the charging circuit and configured to provide an exciting signal to the crystal oscillation circuit; and a direct current blocking capacitor connected between the voltage-controlled oscillator and the crystal oscillation circuit and configured to block direct current from the voltage-controlled oscillator.

5. 发明申请

US20180302097A1 Fractional-N frequency synthesizer and method thereof 审中-公开
公开(公告)号：US20180302097A1
公开(公告)日：2018-10-18
申请号：US15590776
申请日：2017-05-09
申请人： Beken Corporation
发明人： Dawei GUO , Caogang YU
IPC分类号： H03L7/197 , H03L7/087 , H03L7/089
CPC分类号： H03L7/1976 , H03C3/0925 , H03C3/0933 , H03K23/68 , H03L7/06 , H03L7/085 , H03L7/087 , H03L7/0891 , H03L7/18 , H03M7/3004
摘要： A fractional-N frequency synthesizer comprising a multi-phase generator, a multi-path error phase generator; a current combiner; a loop filter connected to the current combiner; an oscillator (150) connected to the loop filter; a frequency divider (160); a SDM connected to both the frequency divider and the multi-phase generator, to generate variable division ratio.

6. 发明授权

US10056930B1 Wireless microphone receiver and method in the wireless microphone receiver 有权
公开(公告)号：US10056930B1
公开(公告)日：2018-08-21
申请号：US15813162
申请日：2017-11-15
申请人： Beken Corporation
发明人： Qunshan Xu , Huaming Jiang
IPC分类号： H03D3/24 , H04B1/16 , H04R1/22 , H04R1/26 , H04B1/10
CPC分类号： H04B1/16 , H04B1/20 , H04B2001/1072 , H04R1/227 , H04R1/265 , H04R3/00 , H04R29/004 , H04R2410/00 , H04R2420/07
摘要： A wireless microphone receiver comprises a phase locker to lock a phase of an audio data successfully received from a microphone transmitter; a calculator to calculate a frequency offset between the locked phase of the microphone receiver and the phase of the microphone transmitter; a calibrator to calibrate the frequency offset using a first step if the absolute value of the frequency offset is larger than a first predetermined threshold, and to calibrate the frequency offset with a second step if the absolute value of the frequency offset is smaller than or equal to the first predetermined threshold, and complete the calibration if a calibrated frequency offset is smaller than a second threshold; a buffer to buffer the audio data received from the microphone transmitter, and the calibrator further adjusts the amount of data stored in the buffer; and the microphone receiver further outputs buffered audio data.

7. 发明授权

US09991589B2 Antenna and method of forming the antenna 有权
公开(公告)号：US09991589B2
公开(公告)日：2018-06-05
申请号：US14849579
申请日：2015-09-09
申请人： Beken Corporation
发明人： Bo Jia , Lizhen Zhu , Qunshan Xu
IPC分类号： H01Q1/38
CPC分类号： H01Q1/38 , H01Q1/36
摘要： The invention discloses an antenna comprising a plurality of laminated layers of radiating elements, wherein each layer of radiating elements is arranged in a zigzag pattern; a feed point connected to one of the plurality laminated layers of the radiating elements and is configured to receive a radio frequency signal; and a plated via configured to couple the plurality of laminated layers of radiating elements; wherein the radiating elements are configured to radiate the radio frequency signal.

8. 发明授权

US09990937B1 Device and method for synchronizing speakers 有权
公开(公告)号：US09990937B1
公开(公告)日：2018-06-05
申请号：US15384312
申请日：2016-12-19
申请人： Beken Corporation
发明人： Wenxing Tu , Xiaoyan He
IPC分类号： H04R29/00 , G10L21/043 , H04R3/12 , H04R3/04
CPC分类号： G10L21/043 , H04R3/12 , H04R2420/07
摘要： A first speaker, comprising: a receiver configured to receive, from a second speaker, a second runtime and a second number of audio samples when the first speaker plays an audio file synchronized with the second speaker; a calculator configured to calculate a time interval value based on the second runtime; a generator configured to generate a revised second number of audio samples based on the time interval value; a comparator configured to compare a difference between the revised second number of audio samples and a first number of audio samples of the first speaker so as to determine the amount of latency of the first speaker; an adjustor configured to adjust a playing speed of the first speaker; and an output configured to output the audio file according to the adjusted playing speed.

9. 发明申请

US20180115285A1 METHOD AND CIRCUIT FOR SUPPRESSING POP NOISE IN AN AUDIO OPERATION AMPLIFIER 有权
公开(公告)号：US20180115285A1
公开(公告)日：2018-04-26
申请号：US15347799
申请日：2016-11-10
申请人： Beken Corporation
发明人： Donghui GAO , Jiazhou LIU , Dawei GUO
IPC分类号： H03F1/26 , H03F3/185 , H03F3/21 , H03F3/45 , H03F1/34
CPC分类号： H03F1/26 , H03F1/0277 , H03F1/305 , H03F1/342 , H03F3/185 , H03F3/21 , H03F3/303 , H03F3/45179 , H03F3/45183 , H03F3/72 , H03F2200/03 , H03F2203/30078 , H03F2203/30111 , H03F2203/45151
摘要： A method for suppressing POP noise in an audio operation amplifier, comprising: connecting a first resistor and a second resistor in series at an output stage of the audio operation amplifier by turning on a first switch and a second switch; generating, with a ramp generator, a ramp voltage after an audio signal is input into the audio operation amplifier, wherein the ramp voltage varies from zero to a first value; generating, with an voltage generator, a second voltage, wherein a third switch is turned on and a fourth switch is turned off when the ramp voltage reaches the second value; short-circuiting the first and second resistors by turning off the first and second switches; and outputting, with the audio operation amplifier, an amplified audio signal.

10. 发明申请

US20160358613A1 WIRELESS DEVICE AND METHOD IN THE WIRELESS DEVICE 审中-公开
标题翻译：无线设备中的无线设备和方法
公开(公告)号：US20160358613A1
公开(公告)日：2016-12-08
申请号：US14746851
申请日：2015-06-23
申请人： Beken Corporation
发明人： Weifeng Wang , Yiming Huang
IPC分类号： G10L19/00 , G10H1/36 , G10L21/055
CPC分类号： G10H1/366 , G10H1/361 , G10H2240/211 , G10H2250/595 , G10L19/167 , H04B1/66
摘要： A transmitter comprises an analog-to-digital converter, an audio signal compressor, a framer, a scrambler, a modulator, and a transmitting unit. The analog-to-digital converter translates an analog audio signal into a digital Pulse-Code Modulation (PCM) format audio signal. The audio signal compressor compresses the PCM format audio signal into a coded bit stream with a modified Adaptive differential Pulse-code Modulation (ADPCM) algorithm. The framer packetizes the coded bit stream into a 1.125 ms frame data by adding a preamble, a signaling field, a data field, and a cyclic redundancy check field to the coded bit stream. The scrambler scrambles the frame data with an ID number. The modulator generates a modulated signal by modulating the scrambled frame data with a predetermined modulation scheme. The transmitting unit transmits the modulated signal.
摘要翻译：发射机包括模数转换器，音频信号压缩器，成帧器，加扰器，调制器和发射单元。模数转换器将模拟音频信号转换为数字脉冲编码调制（PCM）格式的音频信号。音频信号压缩器通过修改的自适应差分脉冲编码调制（ADPCM）算法将PCM格式音频信号压缩成编码比特流。成帧器通过向编码比特流添加前导码，信令字段，数据字段和循环冗余校验字段来将编码比特流分组为1.125ms帧数据。加扰器用ID号码对帧数据进行加扰。调制器通过以预定的调制方式调制加扰的帧数据来产生调制信号。发送单元发送调制信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式