-
公开(公告)号：US20250105928A1
公开(公告)日：2025-03-27
申请号：US18471345
申请日：2023-09-21
Applicant: QUALCOMM INCORPORATED
Inventor： Cheng-Han WANG , Varun Amar REDDY , Qi ZHOU , Hsin-Hsu CHEN , Liang ZHAO , Koorosh AKHAVAN , Yi ZENG , Chan Hong PARK , Le Nguyen LUONG
Abstract: A system for radio frequency (RF) residual sideband (RSB) calibration includes a complex (in phase/quadrature (I/Q)) signal receiver, a signal generator configured to generate a transmit (Tx) signal, a first phase shifter operably coupled to the real signal transmitter, a first signal combiner configured to combine a receive (Rx) signal with the transmit (Tx) signal to generate a first combined signal, a second phase shifter configured to provide a selected phase shift to the first combined signal, and a complex downconverter configured to generate an in phase Rx signal and a quadrature Rx signal alternatively using an in phase LO signal and a quadrature LO signal to generate one or more signals indicative of relative Tx-Rx LO phase (θ), amplitude (A), Tx LO I/Q phase mismatch (ε), Rx I/Q amplitude mismatch (α), and Rx I/Q phase mismatch (φ) at the output of the complex receiver.
-
公开(公告)号：US20240080062A1
公开(公告)日：2024-03-07
申请号：US17939409
申请日：2022-09-07
Applicant: QUALCOMM Incorporated
Inventor： Cheng-Han WANG , Yi ZENG , Takahide NISHIO , Chan Hong PARK , Emanuele LOPELLI , Liang ZHAO
CPC classification number: H04B1/44 , H03F3/245 , H03F2200/294 , H03F2200/451
Abstract: An apparatus includes a low-noise amplifier having an input and an output, a first switch coupled between the input of the low-noise amplifier and the output of the low-noise amplifier, and a transformer including a first inductor and a second inductor, wherein the first inductor is coupled to the output of the low-noise amplifier. The apparatus also includes a power amplifier having an input and an output, and a switching circuit coupled between the output of the power amplifier and the second inductor.
-
公开(公告)号：US20240040538A1
公开(公告)日：2024-02-01
申请号：US17874571
申请日：2022-07-27
Applicant: QUALCOMM Incorporated
Inventor： Liang ZHAO , Le Nguyen LUONG , Cheng-Han WANG , Bala RAMASAMY , SANTOSH KUMAR GUPTA , Yi ZENG , Chan Hong PARK , Koorosh AKHAVAN
CPC classification number: H04W64/003 , H04B1/719 , G01S19/48
Abstract: Techniques are provided for determining the location of ultrawideband (UWB) devices in a network. An example method for providing location information associated with a target device in a UWB network includes determining a location of a bridge device, querying the bridge device for location information associated with the target device, receiving location information associated with the target device from the bridge device, and determining a location of the target device based at least in part on the location of the bridge device and the location information associated with the target device.
-
公开(公告)号：US20200091955A1
公开(公告)日：2020-03-19
申请号：US16130745
申请日：2018-09-13
Applicant: QUALCOMM Incorporated
Inventor： Cheng-Han WANG , Yi ZENG
Abstract: Certain aspects of the present disclosure provide methods and apparatus for simultaneous multi-band transmission, including techniques and circuitry for reducing the coupling of a second-order harmonic signal into a victim circuit. One example radio frequency front-end circuit generally includes a first transmit output stage circuit configured to output signals in a first frequency band and a second transmit output stage circuit configured to output signals in a second frequency band. The first transmit output stage circuit generally includes a first adjustable transconductance stage comprising an input stage and a cascode stage coupled to the input stage; and a first adjustable impedance stage coupled to the first adjustable transconductance stage. For certain aspects, the second transmit output stage circuit generally includes a second adjustable transconductance stage and a second adjustable impedance stage coupled to the second adjustable transconductance stage.
-
5.发明申请METHODS AND APPARATUS FOR GENERATING TWO-TONE CALIBRATION SIGNALS FOR PERFORMING LINEARITY CALIBRATION 有权用于生成用于进行线性校准的两个校准信号的方法和装置公开(公告)号：US20150311989A1
公开(公告)日：2015-10-29
申请号：US14265078
申请日：2014-04-29
Applicant: QUALCOMM Incorporated
Inventor： Jesse Aaron RICHMOND , Cheng-Han WANG , Mohammad Bagher VAHID FAR , Yi ZENG , Jin-Su KO
CPC classification number: H04B17/21 , H04L7/0331
Abstract: Certain aspects of the present disclosure provide methods and apparatus for generating a two-tone signal for performing linearity calibration of a radio frequency (RF) circuit. One example apparatus generally includes a tone generating circuit configured to generate a first single-tone signal from a digital clock signal and a mixer connected with the tone generating circuit and configured to mix the first single-tone signal with a second single-tone signal to provide a two-tone signal having frequencies at a sum and a difference of frequencies of the first and second single-tone signals.
Abstract translation: 本公开的某些方面提供了用于生成用于执行射频（RF）电路的线性校准的双音信号的方法和装置。 一个示例性设备通常包括乐音发生电路，其被配置为从数字时钟信号产生第一单音信号，以及混音器，与音调发生电路相连，并配置为将第一单音信号与第二单音信号混合到 提供具有第一和第二单音信号的和频和频差的频率的双音信号。
-
Patent Agency Ranking
6.发明公开公开(公告)号：US20240322925A1
公开(公告)日：2024-09-26
申请号：US18189642
申请日：2023-03-24
Applicant: QUALCOMM Incorporated
Inventor： Tu-I TSAI , Cheng-Han WANG , Yi ZENG , Chan Hong PARK , Sunghwan KIM
CPC classification number: H04J3/0638 , H03M1/1255
Abstract: An apparatus, including: an oscillator configured to generate a clock signal; a clock signal synthesizer configured to generate a first clock signal, a second clock signal, and a third clock signal, wherein the first, second, and third clock signals are based on the clock signal; a baseband transmitter configured to generate a transmit baseband digital signal in response to the first clock signal; an ultra-wideband (UWB) pulse digital-to-analog converter (DAC) configured to generate a UWB pulse signal based on the transmit baseband digital signal in response to the second clock signal; and a frequency upconverter configured to frequency upconvert the UWB pulse signal to generate a transmit radio frequency (RF) signal based on the third clock signal.
-
公开(公告)号：US20240106496A1
公开(公告)日：2024-03-28
申请号：US17934513
申请日：2022-09-22
Applicant: QUALCOMM Incorporated
Inventor： Yi ZENG , Cheng-Han WANG , Emanuele LOPELLI , Chan Hong PARK , Liang ZHAO , Le Nguyen LUONG , Koorosh AKHAVAN
CPC classification number: H04B1/7174 , H03F3/245 , H03F2200/09 , H03F2200/451
Abstract: Aspects described herein include devices and methods for smart ultra wideband transmissions. In one aspect, an apparatus includes pulse generation circuitry configured to output a plurality of transmission (TX) pulse samples at a selected signal sample rate, where each pulse sample of the plurality of TX pulse samples comprises a value associated with a pulse amplitude at a corresponding sample time The apparatus includes a plurality of power amplifier (PA) cells, with each PA cell of the plurality of PA cells comprising a corresponding current source and associated gates, and where the associated gates of a PA cell are selectable to configure an on state and an off state. Logic circuitry of the apparatus is configured to set the on state or the off state for each PA cell.
-
8.发明公开公开(公告)号：US20240098658A1
公开(公告)日：2024-03-21
申请号：US17949935
申请日：2022-09-21
Applicant: QUALCOMM Incorporated
Inventor： Yi ZENG , Cheng-Han WANG , Chan Hong PARK
CPC classification number: H04W56/0005 , H04L7/0331
Abstract: An aspect of the disclosure relates to a transmitter including a phase lock loop (PLL) configured to generate a digital-to-analog (DAC) sampling signal and a local oscillator (LO) signal; a digital-to-analog (DAC) converter configured to convert a transmit digital signal into a transmit analog signal based on the DAC sampling signal; and a mixer configured to frequency upconvert the transmit analog signal based on the LO signal.
-
公开(公告)号：US20150271005A1
公开(公告)日：2015-09-24
申请号：US14220425
申请日：2014-03-20
Applicant: QUALCOMM Incorporated
Inventor： Cheng-Han WANG , I-Liang LIN , Liang ZHAO , Hong Sun KIM , Yi ZENG
CPC classification number: H04L27/3405 , H03C2200/0041 , H03D3/008 , H03D3/009 , H03D2200/0045 , H04L27/364
Abstract: A circuit for performing a residual side band calibration is described. The circuit generally includes a phase imbalance detection circuit. The phase imbalance detection circuit may include a limiter. The phase imbalance detection circuit may be independent of gain imbalance. The circuit may also include a phase imbalance correction circuit. The phase imbalance detection circuit may control coupling between an inphase path and a quadrature path.
Abstract translation: 描述用于执行残余边带校准的电路。 该电路通常包括相位不平衡检测电路。 相位不平衡检测电路可以包括限幅器。 相位不平衡检测电路可以与增益不平衡无关。 电路还可以包括相位不平衡校正电路。 相位不平衡检测电路可以控制同相路径和正交路径之间的耦合。
-
公开(公告)号：US20250096842A1
公开(公告)日：2025-03-20
申请号：US18470195
申请日：2023-09-19
Applicant: QUALCOMM Incorporated
Inventor： Mu LU , Yi ZENG , Cheng-Han WANG , Ming-Tuo CHIN , Chan Hong PARK , Emanuele LOPELLI
IPC: H04B1/7183 , H04B1/717
Abstract: An apparatus, including: a clock source configured to generate a local oscillator (LO) clock signal; a radio frequency digital-to-analog converter (RF DAC) configured to generate a radio frequency (RF) signal based on a data signal and the LO clock signal; and an idle data detector configured to: detect a stream of idle data in the data signal; and disable providing the LO clock signal to at least a portion of the RF DAC in response to detecting the stream of idle data.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.022 seconds)
