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公开(公告)号：US20210359896A1
公开(公告)日：2021-11-18
申请号：US17092214
申请日：2020-11-06
Applicant: Samsung Electronics Co., Ltd.
Inventor： Elina NAYEBI , Pranav DAYAL , Kee-Bong SONG
Abstract: A method of pre-compensating for transmitter in-phase (I) and quadrature (Q) mismatch (IQMM) may include sending a signal through an up-converter of a transmit path to provide an up-converted signal, determining the up-converted signal, determining one or more IQMM parameters for the transmit path based on the determined up-converted signal, and determining one or more pre-compensation parameters for the transmit path based on the one or more IQMM parameters for the transmit path. In some embodiments, the up-converted signal may be determined through a receive feedback path. In some embodiments, the up-converted signal may be determined through an envelope detector.
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公开(公告)号：US20200336221A1
公开(公告)日：2020-10-22
申请号：US16661606
申请日：2019-10-23
Applicant: Samsung Electronics Co., Ltd.
Inventor： Joyson SEBASTIAN , Pranav DAYAL , Kee-Bong SONG
Abstract: A method and an apparatus are provided. The method includes (a) turning on an antenna of an antenna array, wherein other antennas of the antenna array are turned off; (b) measuring power for the antenna at each phase of a phase array; (c) repeating step (b) for each antenna of the antenna array; and (d) estimating gain errors based on the measured power for each antenna of the antenna array at each phase of the phase array.
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公开(公告)号：US20200235969A1
公开(公告)日：2020-07-23
申请号：US16842019
申请日：2020-04-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： Gennady FEYGIN , Pranav DAYAL , Jungwon LEE
Abstract: An apparatus includes a first mixer performing first mixing of an input signal with a digital carrier which rotates the input signal such that one end of a target bandwidth in the input signal is aligned with an edge of a first bandpass filter that performs a first filtering on the first mixed input signal; a second mixer performing a second mixing of the first filtered input signal with a digital carrier which rotates the first filtered input signal such that the opposite end of the target bandwidth is aligned with an edge of a passband of a second bandpass filter that performs a second filtering on the second mixed input signal; and a third mixer performing a third mixing on the second filtered input signal which rotates the second filtered input signal such that the target bandwidth returns to the target bandwidth prior to the first mixing.
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公开(公告)号：US20250047313A1
公开(公告)日：2025-02-06
申请号：US18422459
申请日：2024-01-25
Applicant: Samsung Electronics Co., Ltd.
Abstract: A method and an apparatus are provided in which a first signal is received at a bi-directional coupler of an antenna path. A first power, delivered to an antenna of the antenna path, is measured based on a second signal corresponding to a forward signal provided from the bi-directional coupler to the antenna and a third signal corresponding to a reverse signal reflected back to the bi-directional coupler from the antenna. A power correction value is determined based on a ratio of the second signal to the third signal and a one-to-one relationship of the ratio to a load reflection coefficient of the antenna. A second power delivered to the antenna is determined based on the first power and the power correction value.
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公开(公告)号：US20230082170A1
公开(公告)日：2023-03-16
申请号：US17982504
申请日：2022-11-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： Pranav DAYAL , Kee-Bong SONG , Hou-Shin CHEN , Sung-En CHIU , Karthik NAGARAJAN
IPC: H04W52/24
Abstract: A method of controlling power in a transmission system may include determining a first transmit power of a first transmit path, determining a second transmit power of a second transmit path, and controlling the first transmit path and the second transmit path based on a combination of the first transmit power and the second transmit power. The combination of the first transmit power and the second transmit power may include a sum of the first transmit power and the second transmit power. Controlling the first transmit path and the second transmit path may include determining a first effective power target for the first transmit path based on the first transmit power and the second transmit power, and determining a second effective power target for the second transmit path based on the first transmit power and the second transmit power.
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Patent Agency Ranking
公开(公告)号：US20220131735A1
公开(公告)日：2022-04-28
申请号：US17572614
申请日：2022-01-10
Applicant: Samsung Electronics Co., Ltd.
Inventor： Elina NAYEBI , Pranav DAYAL , Kee-Bong SONG
Abstract: An in-phase and quadrature mismatch compensator for a quadrature transmitter includes a delay element, a complex-valued filter and an adder. The delay element receives an input transmit signal and outputs a delayed transmit signal. The complex-valued filter receives the input transmit signal and outputs a selected part of a filtered output transmit signal. The adder adds the delayed transmit signal and the selected part of the filtered output transmit signal and outputs a pre-compensated transmit signal. In one embodiment, the selected part of the filtered output transmit signal includes the real part of the complex-valued output transmit signal. In another embodiment, the selected part of the filtered output transmit signal includes the imaginary part of the complex-valued output transmit signal. Two transmit real-valued compensators are also disclosed that combine the in-phase and quadrature signals before being filtered.
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公开(公告)号：US20220116884A1
公开(公告)日：2022-04-14
申请号：US17222979
申请日：2021-04-05
Applicant: Samsung Electronics Co., Ltd.
Inventor： Pranav DAYAL , Kee-Bong SONG , Hou-Shin CHEN , Sung-En CHIU , Karthik NAGARAJAN
IPC: H04W52/24
Abstract: A method of controlling power in a transmission system may include determining a first transmit power of a first transmit path, determining a second transmit power of a second transmit path, and controlling the first transmit path and the second transmit path based on a combination of the first transmit power and the second transmit power. The combination of the first transmit power and the second transmit power may include a sum of the first transmit power and the second transmit power. Controlling the first transmit path and the second transmit path may include determining a first effective power target for the first transmit path based on the first transmit power and the second transmit power, and determining a second effective power target for the second transmit path based on the first transmit power and the second transmit power.
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公开(公告)号：US20210211144A1
公开(公告)日：2021-07-08
申请号：US17155723
申请日：2021-01-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Liangbin LI , Pranav DAYAL , Jungwon LEE , Gennady FEYGIN
Abstract: Apparatuses (and methods of manufacturing same), systems, and methods concerning polyphase digital filters are described. In one aspect, an apparatus is provided, including at least one pair of subfilters, each having symmetric coefficients, and a lattice comprising two adders and feedlines corresponding to each of the at least one pair of subfilters, each having symmetric coefficients. In one aspect, the apparatus is a polyphase finite impulse response (FIR) digital filter, including an interpolator and a decimator, where each of the interpolator and the decimator have at least one pair of subfilters, each having symmetric coefficients, and a lattice comprising two adders and feedlines corresponding to each of the at least one pair of subfilters, each having symmetric coefficients.
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公开(公告)号：US20200336117A1
公开(公告)日：2020-10-22
申请号：US16752017
申请日：2020-01-24
Applicant: Samsung Electronics Co., Ltd.
Inventor： Liangbin LI , Gennady FEYGIN , Pranav DAYAL
Abstract: A method and an apparatus are provided for calibrating digital pre-distortion (DPD) of an electronic device. A respective signal is received, by each of a first plurality of receiving antennas, from each of a second plurality of transmitting antennas. A DPD function is determined for each of the second plurality of transmitting antennas based on the received signals. A combined DPD function of the second plurality of transmitting antennas is determined based on the DPD functions and phase shifter settings associated with the second plurality of transmitting antennas.
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公开(公告)号：US20250035765A1
公开(公告)日：2025-01-30
申请号：US18767412
申请日：2024-07-09
Applicant: Samsung Electronics Co., Ltd.
Inventor： Paboda Viduneth Ariyarathna BERUWAWELA PATHIRANAGE , Oren ELIEZER , Gennady FEYGIN , Wan Jong KIM , Pranav DAYAL , Bhupinder Singh Sachdev
Abstract: A system and a method are disclosed for proximity detection using a phased antenna array including multiple antenna elements. A method includes transmitting, via a first antenna element and a second antenna element among the multiple antenna elements, a transmission signal; determining, for the first antenna element, a first power of a first injected signal and a second power of a first reflected signal corresponding to the transmission signal; determining, for the second antenna element, a third power of a second injected signal and a fourth power of a second reflected signal corresponding to the transmission signal; calculating, for the first antenna element, a first power metric based on at least one of the first power of the first injected signal or the second power of the first reflected signal; calculating, for the second antenna element, a second power metric based on at least one of the third power of the second injected signal or the fourth power of the second reflected signal; comparing the first power metric with a first threshold value; comparing the second power metric with a second threshold value; and determining whether an object is detected within a proximity range of the phased antenna array, based on the comparison of at least one of the first power metric with the first threshold value or the second power metric with the second threshold value.
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