Search

Dai D Sieh

from Palo Alto, CA
Age ~55

Dai Sieh Phones & Addresses

  • 1212 Middlefield Rd, Palo Alto, CA 94301
  • 225 Manzanita Ave, Palo Alto, CA 94306
  • 3256 Kipling St, Palo Alto, CA 94306
  • 462 Joshua Way, Sunnyvale, CA 94086
  • Alexander, AR
  • Madison, WI
  • Minneapolis, MN
  • Mountain View, CA
  • Santa Clara, CA

Publications

Us Patents

Front-End Receiver Circuit With Multiple Paths Which Are Simultaneously Active And Receiver System Using The Same

View page
US Patent:
20110237213, Sep 29, 2011
Filed:
Jun 15, 2010
Appl. No.:
12/816038
Inventors:
Dai SIEH - Palo Alto CA, US
Assignee:
Ralink Technology (Singapore) Corporation PTE. LTD - Singapore
International Classification:
H04B 1/06
US Classification:
455134
Abstract:
A front end receiver is disclosed. The front end receiver comprises a plurality of transmissive signal paths originating from one signal input, a plurality of switching mechanisms; and at least one path of the plurality of transmissive signal paths including a first amplifier coupled to a first input port of each of the plurality of switching mechanisms. The front end receiver also comprises at least another path of the plurality of transmissive signal paths including a second amplifier coupled to a second input port of each of the plurality of switching mechanisms. The receiving subsystem coupled to the output port of each switching mechanism. Each of the receiving subsystems controls a switching mechanism to select the path that is optimal for radio reception depending on the strength of signal being received.

Systems And Methods For Configurable Hybrid Self-Interference Cancellation

View page
US Patent:
20200395966, Dec 17, 2020
Filed:
Aug 28, 2020
Appl. No.:
17/005683
Inventors:
- Sunnyvale CA, US
Alfred Riddle - Sunnyvale CA, US
Ernie Landi - Sunnyvale CA, US
Dai Sieh - Sunnyvale CA, US
Jung-Il Choi - Sunnyvale CA, US
Mayank Jain - Sunnyvale CA, US
International Classification:
H04B 1/10
H04L 5/14
H04B 1/40
Abstract:
A system for self-interference cancellation includes a frequency downconverter that decomposes a sampled RF transmit signal into an in-phase transmit signal and a quadrature transmit signal; a first analog vector modulator that scales the transmit signals to generate first scaled transmit signals; a second analog vector modulator that scales delayed transmit signals to generate second scaled transmit signals; a frequency upconverter that recomposes the scaled transmit signals into an RF self-interference cancellation signal; and a receive coupler that that combines the RF self-interference cancellation signal with a RF receive signal to reduce self-interference.

Systems And Methods For Configurable Hybrid Self-Interference Cancellation

View page
US Patent:
20190372611, Dec 5, 2019
Filed:
Aug 13, 2019
Appl. No.:
16/539759
Inventors:
- Sunnyvale CA, US
Alfred Riddle - Sunnyvale CA, US
Ernie Landi - Sunnyvale CA, US
Dai Sieh - Sunnyvale CA, US
Jung-Il Choi - Sunnyvale CA, US
Mayank Jain - Sunnyvale CA, US
International Classification:
H04B 1/10
H04L 5/14
H04B 1/40
Abstract:
A system for self-interference cancellation includes a frequency downconverter that decomposes a sampled RF transmit signal into an in-phase transmit signal and a quadrature transmit signal; a first analog vector modulator that scales the transmit signals to generate first scaled transmit signals; a second analog vector modulator that scales delayed transmit signals to generate second scaled transmit signals; a frequency upconverter that recomposes the scaled transmit signals into an RF self-interference cancellation signal; and a receive coupler that that combines the RF self-interference cancellation signal with a RF receive signal to reduce self-interference.

Systems And Methods For Configurable Hybrid Self-Interference Cancellation

View page
US Patent:
20190268029, Aug 29, 2019
Filed:
Feb 27, 2019
Appl. No.:
16/288033
Inventors:
- Sunnyvale CA, US
Alfred Riddle - Sunnyvale CA, US
Ernie Landi - Sunnyvale CA, US
Dai Sieh - Sunnyvale CA, US
Jung-Il Choi - Sunnyvale CA, US
Mayank Jain - Sunnyvale CA, US
International Classification:
H04B 1/10
H04B 1/40
H04L 5/14
Abstract:
A system for self-interference cancellation includes a frequency downconverter that decomposes a sampled RF transmit signal into an in-phase transmit signal and a quadrature transmit signal; a first analog vector modulator that scales the transmit signals to generate first scaled transmit signals; a second analog vector modulator that scales delayed transmit signals to generate second scaled transmit signals; a frequency upconverter that recomposes the scaled transmit signals into an RF self-interference cancellation signal; and a receive coupler that that combines the RF self-interference cancellation signal with a RF receive signal to reduce self-interference.

Radio Frequency Receiver Front-End With Gain Control Capability As Well As Improved Impedance Matching Control Capability

View page
US Patent:
20170070252, Mar 9, 2017
Filed:
Sep 5, 2016
Appl. No.:
15/256730
Inventors:
- Hsin-Chu, TW
Keng Leong Fong - Sunnyvale CA, US
Dai Sieh - Palo Alto CA, US
Bryan Liangchin Huang - Los Altos CA, US
International Classification:
H04B 1/16
H03G 3/30
H03F 3/19
Abstract:
A radio frequency receiver is provided. The receiver can be employed in a low power (or ultra-low power) receiver architecture to generate a baseband signal or an intermediate frequency signal. In addition, the receiver includes capabilities of gain control to provide different gain settings as well as providing better/improved impedance matching control.
Dai D Sieh from Palo Alto, CA, age ~55 Get Report