Sam Hsiaotung Liu

8386688, Feb 26, 2013

Apr 29, 2010

12/770690

Mark N. Fullerton - Austin TX, US
Robert Morris - Mission Viejo CA, US
Lance Flake - Longmont CO, US
Sam Liu - Irvine CA, US
Chaoyang Zhao - Irvine CA, US
Vinay Bhasin - Irvine CA, US
Joyjit Nath - San Francisco CA, US
Bhupesh Kharwa - San Romon CA, US
Claude G. Hayek - Huntington Beach CA, US

Broadcom Corporation - Irvine CA

G06F 13/36

710308, 710310, 710314

A modular integrated circuit includes a hub module that is coupled to a plurality of spoke modules via a plurality of hub interfaces. The plurality of hub interfaces provide a plurality of signal interfaces between the hub module and each of the plurality of spoke modules, wherein each of the plurality of signal interfaces is isolated from each of the other signal interfaces of the plurality of signals interface, and wherein each of the plurality of signal interfaces operates in accordance with a common signaling format.

8392745, Mar 5, 2013

Apr 26, 2010

12/767226

Greg Goodemote - Tustin CA, US
Khan Kibria - Mission Viejo CA, US
Mark N. Fullerton - Austin TX, US
Niray P. Dagli - Placentia CA, US
Liang Deng - Sunnyvale CA, US
Sam Liu - Irvine CA, US

Broadcom Corporation - Irvine CA

G06F 1/00

713501, 713300, 713320, 713322

A modular integrated circuit includes a hub module that is coupled to a plurality of spoke modules via a plurality of hub interfaces. The hub module includes a clock control circuit, coupled to the plurality of hub interfaces, that selectively supplies a plurality of clock signals to the plurality of spoke modules by receiving a clock request signal from a corresponding one of the plurality of spoke modules via the signal interface of the corresponding one of the plurality of hub interfaces, generating at least one of the plurality of clock signals in response to the clock request signal; and sending the at least one of the plurality of clock signals to the corresponding one of the plurality of spoke modules via the signal interface of the corresponding one of the plurality of hub interfaces.

20070280396, Dec 6, 2007

May 31, 2007

11/806397

Sam H. Liu - Irvine CA, US
Zhiqing Zhuang - Irvine CA, US
Chaoyang Zhao - Irvine CA, US
Vinay Bhasin - Irvine CA, US
Chenmin Zhang - Irvine CA, US
Lawrence J. Madar - San Francisco CA, US
Vafa J. Rakshani - Newport Coast CA, US

Broadcom Corporation - Irvine CA

H04L 7/00

375372

Provided is a method for transferring data from one clock domain within a synchronizer to another domain within the synchronizer. The method includes determining system clock parameters within the synchronizer and analyzing a first domain clock signal based upon the system clock parameters. Next, a second domain clock signal is analyzed based upon the first domain clock signal and the system clock parameters. A determination is made as to when to transfer data from a first clock domain to a second clock domain in accordance with the analysis of the first and second domain clock signals, and an enable signal is provided to affect the data transfer from the first domain to the second clock domain.

20130091316, Apr 11, 2013

Nov 30, 2012

13/690019

Robert Morris - Mission Viejo CA, US
Lance Leslie Flake - Longmont CO, US
Sam Liu - Irvine CA, US
Chaoyang Zhao - Irvine CA, US
Vinay Bhasin - Irvine CA, US
Joyjit Nath - San Francisco CA, US
Bhupesh Kharwa - San Romon CA, US
Claude G. Hayek - Huntington Beach CA, US

BROADCOM CORPORATION - Irvine CA

G06F 13/28
G06F 13/40

710308, 710306

A modular integrated circuit includes a hub module that is coupled to a plurality of spoke modules via a plurality of hub interfaces. The plurality of hub interfaces provide a plurality of signal interfaces between the hub module and each of the plurality of spoke modules, wherein each of the plurality of signal interfaces is isolated from each of the other signal interfaces of the plurality of signals interface, and wherein each of the plurality of signal interfaces operates in accordance with a common signaling format.

62593145, Jul 10, 2001

Feb 12, 1999

9/249908

Sam H. Liu - Los Angeles CA
Edward L. Niu - Redondo Beach CA
Vincent C. Moretti - Torrance CA

TRW Inc. - Redondo Beach CA

H04B 1700

329304

The invention is a demodulator (50, 100) and a method of data reception and testing of a demodulator. A demodulator in accordance with the invention includes an input signal source (52, 102) having an output which during data reception is a data signal and which during testing of the demodulator is a reference signal; a tuner (54, 101) having a tuner input coupled to the output of the input signal source and a tuner output, the tuner including a frequency converter (20, 36) which frequency shifts the data signal to a lower carrier frequency during data reception to cause the tuner to output at the tuner output the lower carrier frequency modulated with the data signal and which upwardly frequency shifts the reference signal to a test carrier frequency during the testing; and a test data source (56, 105) which applies a test data signal to the tuner during the testing to cause the tuner to output at the tuner output the test carrier frequency modulated with the test data signal.

62631950, Jul 17, 2001

Feb 12, 1999

9/249904

Edward L. Niu - Redondo Beach CA
Sam H. Liu - Los Angeles CA
Gregory S. Caso - Hermosa Beach CA

TRW Inc. - Redondo Beach CA

H03K 900

4551501

A wideband digital tuner (14') has an analog front-end section (10), a high speed analog-to-digital converter (12), demultiplexer (13) and a plurality of filters (34. sub. 1 -34. sub. 2) arranged in a parallel input architecture to process wideband digital data received at extremely high sampling rates, such as at 2 Gsps (giga-samples per second). The tuner greatly attenuates an undesired spectral half of the wide bandwidth digital spectrum of the incoming digital signal using a complex band-pass filter, such as a Hilbert Transform filter. The tuner places the remaining half of the wide bandwidth digital spectrum of the incoming digital signal at complex baseband and down samples by 2. The architecture of the tuner can be partitioned into two separate halves which are hardware copies of each other.

20200077855, Mar 12, 2020

Sep 6, 2019

16/562989

- Needham MA, US
Jason B. THORNE - Dover MA, US
Kai XU - Suzhou, CN
Sam LIU - Needham MA, US
Lee COTTRELL - Needham MA, US

A47L 9/28
A47L 9/32
A47L 5/28

An example of a system, consistent with the present disclosure, may include a motor-battery assembly. The motor-battery assembly may include a housing defining one or more cavities, a suction motor configured to be fluidly coupled to a debris compartment of a vacuum cleaner for generating air flow through the vacuum cleaner for entraining debris, one or more batteries at least partially disposed within at least one of the one or more cavities, and a motor/battery controller at least partially disposed within at least one of the one or more cavities, the motor/battery controller configured to control power provided to the suction motor and to regulate charging and/or discharging of the one or more batteries.

20180296046, Oct 18, 2018

Oct 21, 2016

15/768879

- Needham MA, US
Daniel MEYER - Boston MA, US
Andre David BROWN - Natick MA, US
Sam LIU - Needham MA, US

A47L 9/04
A47L 9/06

A surface cleaning head with a leading roller may be used to facilitate capturing of debris in the air flow into a suction conduit on the underside of the surface cleaning head. The leading roller is generally positioned adjacent to and in advance of the opening of the suction conduit. The surface cleaning head may have dual agitators—a leading roller and a rotating brush roll—with the leading roller being located in front of the brush roll. The leading roller may have a smaller diameter than the brush roll and may provide a softer cleaning element. The leading roller may also have a bottom portion exposed to the flow path to the suction conduit and at least a top half that is not exposed to that flow path. The leading roller may also float relative to the surface cleaning head and/or may be adjustable relative to the brush roll.