Liang W Chang

US Patent:

6459777, Oct 1, 2002

Filed:

Sep 17, 2001

Appl. No.:

09/954585

Inventors:

Liang Hsi Chang - Walnut CA

Assignee:

Keytouch Corporation - Walnut CA

International Classification:

H04M 1100

US Classification:

379 9327, 379 9317

Abstract:

A data entry and processing system providing for simple two stroke entry of numerous auxiliary alpha-numeric data in addition to the single stroke entry of numeric data, using conventional data entry keys. The key array includes a set of radial direction indicator keys that are used with the conventional keys to select and enter a given alpha-numeric data item. An LCD display, a pre-programed micro-processor and other electronic components are included to display the data entries, as well as to convert entered data signals to the necessary DTMF tones for telecommunication or ASCII codes for computer data entries. The system is simple for use by ordinary users, and all electronic components are standard, miniscule in size, small in number, low in power need and low in cost. It is particularly adaptable for miniaturized device application.

US Patent:

D625668, Oct 19, 2010

Filed:

Sep 9, 2009

Appl. No.:

29/316266

Inventors:

Liang Chang - Ontario CA, US
Xin Hua Chen - Huzhou City, Zhejiang, CN

International Classification:

1211

US Classification:

D12110

US Patent:

8177013, May 15, 2012

Filed:

May 28, 2009

Appl. No.:

12/455260

Inventors:

Liang Chang - Ontario CA, US
Xin Hua Chen - Huzhou, CN

International Classification:

B62D 61/06

US Classification:

180215, 180210, 180312, 280781, 280788

Abstract:

A rear-wheels transmission and suspension system, adapted for modifying a two wheeled motorcycle into a motorcycle containing two rear wheels, includes a suspension device, a rear axle and a transmission device. The suspension device includes a supporting frame longitudinally extending along the central axis of a construction frame and pivotally connected with a seat portion of the construction frame of the motorcycle for supporting the rear axle at the rear end the supporting frame while defining a transmission cavity after a rear end of the supporting frame and at a central position behind an output of said engine along the central axis of the construction frame. Therefore the transmission device is able to be supported by the rear axle in the transmission cavity to transmit a rotation output from the engine to drive the rear axle to rotate for driving the rear wheels to rotate.

US Patent:

20030169188, Sep 11, 2003

Filed:

Sep 30, 2002

Appl. No.:

10/262420

Inventors:

Liang Chang - Walnut CA, US

Assignee:

Keytouch Corporation - Walnut CA

International Classification:

H03M011/00
H03K017/94
H04M011/00

US Classification:

341/022000, 379/369000, 379/093180

Abstract:

A data entry and processing system providing for simple two stroke entry of numerous auxiliary alpha-numeric data in addition to the single stroke entry of numeric data, using conventional data entry keys. The key array includes a set of radial direction indicator keys that are used with the conventional keys to select and enter a given alpha-numeric data item. An LCD display, a pre-programed micro-processor and other electronic components are included to display the data entries, as well as to convert entered data signals to the necessary DTMF tones for telecommunication or ASCII codes for computer data entries. The system is simple for use by ordinary users, and all electronic components are standard, minuscule in size, small in number, low in power need and low in cost. It is particularly adaptable for miniaturized device application.

US Patent:

20040179663, Sep 16, 2004

Filed:

Jan 20, 2004

Appl. No.:

10/760629

Inventors:

Liang Chang - Walnut CA, US

Assignee:

Keytouch Corporation - Walnut CA

International Classification:

H04M011/00

US Classification:

379/093270, 379/093180

Abstract:

A mobile information gateway comprises a mobile communications device, preferably a phone, which includes a first communications link with a remote data source, typically the Internet, and a second communications link to a separated display, so that data output is conveniently presented for ready use.

US Patent:

20120193161, Aug 2, 2012

Filed:

Apr 9, 2012

Appl. No.:

13/506301

Inventors:

Liang Chang - Ontario CA, US
Xin Hua Chen - Huzhou City, CN

International Classification:

B62K 11/02

US Classification:

180215

Abstract:

A rear-wheels transmission and suspension system, adapted for modifying a two wheeled motorcycle into a motorcycle containing two rear wheels, includes a suspension device, a rear axle and a transmission device. The suspension device includes a supporting frame longitudinally extending along the central axis of a construction frame and pivotally connected with a seat portion of the construction frame of the motorcycle for supporting the rear axle at the rear end the supporting frame while defining a transmission cavity after a rear end of the supporting frame and at a central position behind an output of said engine along the central axis of the construction frame. Therefore the transmission device is able to be supported by the rear axle in the transmission cavity to transmit a rotation output from the engine to drive the rear axle to rotate for driving the rear wheels to rotate.

US Patent:

20130154928, Jun 20, 2013

Filed:

Feb 18, 2013

Appl. No.:

13/769698

Inventors:

LIANG HSI CHANG - Walnut CA, US

International Classification:

G06F 3/01

US Classification:

345157

Abstract:

A directional stroke input system has a display. A virtual key pad is displayed on the display, and the virtual keypad has an array of virtual keys. A cursor or a focus area placed on the virtual keypad at a selected key of the virtual keypad. A stroke recognition device includes a stroke sensing area. The stroke recognition device has eight straight directional strokes including: an up left stroke, an up stroke, an up right stroke, a left stroke, a right stroke, a down left stroke, a down stroke, and a down right stroke. The stroke recognition device has eight hook strokes including: an up left hook stroke, an up hook stroke, an up right hook stroke, a left hook stroke, a right hook stroke, a down left hook stroke, a down hook stroke, and a down right hook stroke.

US Patent:

6320942, Nov 20, 2001

Filed:

Dec 31, 1998

Appl. No.:

9/224435

Inventors:

Liang Hsi Chang - Walnut CA

Assignee:

Keytouch Corporation - CA

International Classification:

H04M 1100

US Classification:

379 9327

Abstract:

A data entry and processing system providing for simple two stroke entry of numerous auxiliary alpha-numeric data in addition to the single stroke entry of numeric data, using conventional data entry keys. The key array includes a set of radial direction indicator keys that are used with the conventional keys to select and enter a given alpha-numeric data item. An LCD display, a pre-programed micro-processor and other electronic components are included to display the data entries, as well as to convert entered data signals to the necessary DTMF tones for telecommunication or ASCII codes for computer data entries. The system is simple for use by ordinary users, and all electronic components are standard, miniscule in size, small in number, low in power need and low in cost. It is particularly adaptable for miniaturized device application.