Young S Shin

US Patent:

8323466, Dec 4, 2012

Filed:

Dec 7, 2009

Appl. No.:

12/632661

Inventors:

Sunnie Park Kim - Manhattan Beach CA, US
Young Shik Shin - Pasadena CA, US
Changgeng Liu - Alhambra CA, US
Rory Kelly - Escalon CA, US
Becky Chan - Los Angeles CA, US

Assignee:

NanoIVD, Inc. - Los Angeles CA

International Classification:

H01L 51/10
H01L 51/30
G01N 27/00

US Classification:

20440301, 257 20, 257 40, 435 4, 435 61, 977702, 977734, 977938

Abstract:

A microfluidic-based lab-on-a-test card is described. The test card is used with a point-of-care (POC) analyzer. The test card is designed to receive a sample and then, with the use of the POC analyzer, quantify or count a particular substance in the sample. The test card may be comprised of multiple layers. In one embodiment, the test card includes a primary separation chamber with a filtration surface, a trapping channel, and a particle detector. The test card may also include a nanowire sensor.

US Patent:

8417200, Apr 9, 2013

Filed:

Sep 30, 2011

Appl. No.:

13/249741

Inventors:

Ray (Ramon) Gomez - San Juan Cap CA, US
Leonard Dauphinee - Irvine CA, US
Massimo Brandolini - Irvine CA, US
Jianhong Xiao - Irvine CA, US
Dongsoo Koh - Irvine CA, US
Young Shin - Irvine CA, US
Chonghua Zhong - Irvine CA, US
Rezaur Rahman Khan - Rancho Santa Margarita CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04B 1/04
H03F 3/04

US Classification:

4551273, 330250, 330255

Abstract:

Embodiments provide transmitter topologies that improve the power efficiency and bandwidth of RF transmitters for high transmission power applications. In an embodiment, the common-emitter/source PA of conventional topologies is replaced with a current-input common-base/gate PA, which is stacked on top on an open-collector/drain current-output transmitter. The common-base/gate PA protects the output of the transmitter from large output voltage swings. The low input impedance of the common-base/gate PA makes the PA less susceptible to frequency roll-off, even in the presence of large parasitic capacitance produced by the transmitter. At the same time, the low input impedance of the common-base/gate PA reduces the voltage swing at the transmitter output and prevents the transmitter output from being compressed or modulated. In an embodiment, the DC output current of the transmitter is reused to bias the PA, which results in power savings compared to conventional transmitter topologies.

US Patent:

7268625, Sep 11, 2007

Filed:

Apr 20, 2005

Appl. No.:

11/109688

Inventors:

Young Joon Shin - Irvine CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H03F 3/45

US Classification:

330261, 330136

Abstract:

A transconductance device has substantially linear characteristics. The transconductance device includes a differential pair that receives a differential input voltage signal and produces a differential output current signal and a current source coupled to the differential pair. The current source produces a current having a constant portion and a variable portion, such that the derivative of the transconductance with respect to the differential input voltage is constant across a very large range of the differential input voltage and across a very high range of frequencies of the differential input signal. This linearization technique produces no extraneous noise at the differential output current.

US Patent:

20090066348, Mar 12, 2009

Filed:

Aug 29, 2007

Appl. No.:

11/897159

Inventors:

Young Shik Shin - Pasadena CA, US
Michael Amori - Pasadena CA, US
Yuri Bunimovich - Williamsville NY, US
James H. Heath - South Pasadena GA, US

International Classification:

G01R 27/08

US Classification:

324693, 977953

Abstract:

A nanoelectronic device for detecting target molecules is described. The device has an array of nanoscale wires serving as sensors of target molecules and electrical contacts, electrically contacting the nanowires at end regions of the nanoscale wires. The end regions are covered with an insulating material. The insulating material also defines a window region of the nanoscale wires, not covered by the insulating material. Probe molecules are located on the nanoscale wires along the window region. A microfluidic channel can also be provided, to allow flow of the target molecules. A method of fabricating the nanoelectronic device is also shown and described.

US Patent:

20090237131, Sep 24, 2009

Filed:

Mar 21, 2008

Appl. No.:

12/077894

Inventors:

Young Joon Shin - Irvine CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H03L 7/093
H03L 7/087

US Classification:

327157

Abstract:

A disclosed exemplary embodiment is a phase locked loop comprising a main charge pump driven by a phase error signal, and providing a first input to a loop filter. An auxiliary charge pump driven by the phase error signal feeds a second input of the loop filter. The loop filter can be an active loop filter comprising an operational amplifier and a feedback RC network. The first input of the active loop filter can be an inverting input of the operational amplifier and the second input can be a non-inverting input of the operational amplifier. An on-chip stabilizing capacitor fed by the auxiliary charge pump and coupled to the second input of the loop filter is significantly smaller than the conventional stabilizing capacitors. The loop filter outputs a regulating voltage for regulating the oscillation frequency of a voltage controlled oscillator in the phase locked loop.

US Patent:

20120258445, Oct 11, 2012

Filed:

Apr 12, 2012

Appl. No.:

13/444845

Inventors:

Sunnie Park KIM - Manhattan Beach CA, US
Young Shik SHIN - Pasadena CA, US
Changgeng LIU - Alhambra CA, US

Assignee:

NanolVD, Inc. - Los Angeles CA

International Classification:

G01N 33/53
G01N 33/543
G01N 31/00
B82Y 15/00

US Classification:

435 5, 436 2, 436518, 435 71, 977720, 977762, 977902

Abstract:

Methods for using nanowire sensors are described. In one embodiment, the nanowire sensor may be field effect transistor having a nanowire and a functionalized control electrode. One method of using such a nanowire sensor includes exposing the functionalized control electrode to a test sample and an enhancing reagent. In another embodiment, the nanowire sensor may be a field effect transistor having a gate electrode and a functionalized nanowire. One method of using such a nanowire sensor includes exposing the functionalized nanowire to a test sample and an enhancing reagent. The use of an enhancing reagent increases the sensitivity of the nanowire sensor to a substance to be detected or quantified.

US Patent:

20130235953, Sep 12, 2013

Filed:

Mar 22, 2013

Appl. No.:

13/849112

Inventors:

Leonard Dauphinee - Costa Mesa CA, US
Massimo Brandolini - Irvine CA, US
Jianhong Xiao - Irvine CA, US
Dongsoo Koh - Irvine CA, US
Young Shin - Irvine CA, US
Chonghua Zhong - Irvine CA, US
Reza Rahman Khan - Irvine CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04B 1/04
H03M 1/66

US Classification:

375297, 341144

Abstract:

Embodiments provide transmitter topologies that improve the power efficiency and bandwidth of RF transmitters for high transmission power applications. In an embodiment, the common-emitter/source PA of conventional topologies is replaced with a current-input common-base/gate PA, which is stacked on top on an open-collector/drain current-output transmitter. The common-base/gate PA protects the output of the transmitter from large output voltage swings. The low input impedance of the common-base/gate PA makes the PA less susceptible to frequency roll-off, even in the presence of large parasitic capacitance produced by the transmitter. At the same time, the low input impedance of the common-base/gate PA reduces the voltage swing at the transmitter output and prevents the transmitter output from being compressed or modulated, In an embodiment, the DC output current of the transmitter is reused to bias the PA, which results in power savings compared to conventional transmitter topologies.

US Patent:

20150009059, Jan 8, 2015

Filed:

Sep 9, 2013

Appl. No.:

14/021735

Inventors:

- Irvine CA, US
Rong Wu - Irvine CA, US
Young Shin - Irvine CA, US
Karthik Raviprakash - Irvine CA, US
Tao Wang - Costa Mesa CA, US
Chia-Jen Hsu - Irvine CA, US
Tianwei Li - Irvine CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H03M 1/12

US Classification:

341155

Abstract:

A system includes a pipeline analog-to-digital converter as a first stage to process an input signal, and a successive approximation register (SAR) analog-to-digital converter as a second stage to process the input signal. The SAR analog-to-digital converter includes a power adjustment element to adjust a reference voltage of the SAR analog-to-digital converter to match a full scale voltage of the pipeline-analog-to-digital converter.