Mike Chieu Chen

US Patent:

6542629, Apr 1, 2003

Filed:

Jul 22, 1999

Appl. No.:

09/360348

Inventors:

John W. Wu - Rancho Palos Verdes CA
Mike C. Chen - Cerritos CA
Zhigang Fan - Webster NY
Kien A. Phong - Cerritos CA

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G06K 900

US Classification:

382135, 356 71, 902 7

Abstract:

A method and apparatus for preventing or inhibiting effective reproduction of documents such as currency, checks, stock certificates, and any other printed document including a pre-defined security mark printed therein. The subject method and apparatus operate to effect a multi-step review of all digital image data acquired from a printed document to be reproduced for purposes of locating any potential security marks and further examining same for purposes of positively identifying a potential security mark as an actual security mark. If a mark is located and verified to be an authentic security mark, effective reproduction of the printed document will not be permitted and/or other security measures will be taken. A pretest of a mark consists of deleting the fine line patterns that may be printed on top of the mark by smoothing the data in an averaging process, and then determining the difference between the density of the darkest and lightest pixels in the area. A difference smaller than a predetermined value means that the mark is not valid.

US Patent:

D534821, Jan 9, 2007

Filed:

Dec 21, 2004

Appl. No.:

29/219634

Inventors:

Mike Chen - Irvine CA, US

International Classification:

1005

US Classification:

D10104, D10 32

US Patent:

D539687, Apr 3, 2007

Filed:

Dec 21, 2004

Appl. No.:

29/219635

Inventors:

Mike Chen - Irvine CA, US

International Classification:

1005

US Classification:

D10119

US Patent:

D588335, Mar 17, 2009

Filed:

Apr 21, 2008

Appl. No.:

29/317009

Inventors:

Mike Chen - Rowland Heights CA, US

International Classification:

0202

US Classification:

D 2717

US Patent:

D591882, May 5, 2009

Filed:

Jan 23, 2008

Appl. No.:

29/302725

Inventors:

Mike Chen - Irvine CA, US

International Classification:

2605

US Classification:

D26 60

US Patent:

8059002, Nov 15, 2011

Filed:

Jul 25, 2008

Appl. No.:

12/219644

Inventors:

Mike Chen - Irvine CA, US

International Classification:

G08B 23/00

US Classification:

3405736

Abstract:

A pool guard alarm apparatus includes an alarm body, a triggering device and a relative triggering element. The alarm body accommodates a circuit board and a battery for providing a power source. The circuit board is provided with several buttons and a sound member. The buttons enable an authorized person to bypass the alarm mode. The triggering device located at the entrance to the pool has a movable part which is elastic to be against the relative triggering element. The moveable part will produce a triggering signal to the circuit board when the entrance is opened. The circuit board activates the sound member to produce an alarm sound after a predetermined time. The alarm sound is repeated after a period of time while in the alarm mode. When the entrance is then closed, the user must reset a pass code to activate the said alarm mode.

US Patent:

20060187066, Aug 24, 2006

Filed:

Feb 22, 2005

Appl. No.:

11/061032

Inventors:

Mike Chen - Irvine CA, US

International Classification:

G08B 13/00
G08B 7/00
G08B 23/00

US Classification:

340574000, 340815690, 340691500, 340693900

Abstract:

An armlet-type alarm includes a main body having a control circuit and a buzzer mounted therein, and a length-wise adjustable fastening band connected to the main body. The main body is provided at a top with a large-sized alarm push button assembly having a light-emitting device located therein, and a light-up switch for actuating the light-emitting device to emit light intermittently. One side of the main body includes a sound box, which uses a user's arm as one sidewall thereof and has a plurality of sound apertures provided therein. The armlet-type alarm may emits an intermittent warning light if so desired, and may be caused to emit a loud sound in an emergency simply by clapping the alarm push button assembly to actuate the buzzer inside the main body of the alarm.

US Patent:

20060202807, Sep 14, 2006

Filed:

Feb 28, 2005

Appl. No.:

11/067000

Inventors:

Mike Chen - Irvine CA, US

International Classification:

H04B 3/36
G08B 3/00
G08B 5/22

US Classification:

340407100, 340691100, 340007600

Abstract:

A vibration induction type alarm includes a carabiner and a body, and the carabiner is connected to the body by a first connector, and the first connector can activate a buzzer installed on the body. The carabiner includes a gate and a movable member installed at the gate. The body includes an upper casing and a lower casing, and the upper casing on its surface has a speaker cover and a plurality of press buttons. The lower casing includes a circuit board, a battery, a buzzer, an induction vibrator, a press button set, and a second connector; wherein the circuit board is electrically connected to the battery, buzzer, induction vibrator, press button set, first connector and second connector, so that the alarm can be activated manually to protect personal safety and has a function of detecting whether or not a personal belonging is moved or stolen.