Sang Mi Oh

US Patent:

6957089, Oct 18, 2005

Filed:

May 31, 2001

Appl. No.:

09/871570

Inventors:

Sang Hoon Oh - East Hills NY, US
James Bak - Bayside NY, US
Yiu-Ming Lai - Kowloon, HK

Assignee:

Coby Electronics Corporation - Maspeth NY

International Classification:

H04B001/38
H04M001/00

US Classification:

4555691, 455570, 4555751, 455 903, 4555756, 37942801, 37942001, 37942002, 37943302, 37943303, 37943305

Abstract:

The present invention provides a portable, pocket sized speakerphone device adaptable for use with a cellular telephone, and a method for making such a device. The device reduces howling, including echoing and feedback, sufficiently to enable use of the device as a telephone speakerphone. To reduce howling, one or more of the following may be utilized: attenuation circuitry; sound insulation means; positioning the loudspeaker and the microphone of the device such that the outlet of the loudspeaker for emitting sound from the loudspeaker faces in the same direction as the outlet of the microphone for receiving sound into the microphone, and such that a line extending between the outlet of the loudspeaker and the outlet of the microphone would form a right angle with a line extending in the direction of the outlet of the loudspeaker and the outlet of the microphone face.

US Patent:

7676250, Mar 9, 2010

Filed:

Jun 2, 2006

Appl. No.:

11/421837

Inventors:

Daniel S Rokusek - Long Grove IL, US
Sang Y Oh - Lake Zurich IL, US
David A Vanyek - Libertyville IL, US
Kevin L Weirich - Algonquin IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04M 1/00

US Classification:

455570, 455 306, 4555691

Abstract:

A method () for controlling audio signals to an FM transmitter and a loudspeaker of a hands-free adapter first sends a first audio signal to the loudspeaker () and measures and records a loudspeaker audible artifact such as echo return loss () and/or echo tail length (). Next, the hands-free adapter sends a second audio signal to the FM transmitter and the loudspeaker () and measures and records an FM transmitter and loudspeaker audible artifact such as echo return loss () and/or echo tail length (). If the FM transmitter and loudspeaker audible artifact minus the loudspeaker audible artifact is greater than a threshold (), the hands-free adapter sends a third audio signal to the FM transmitter only (), and if the FM transmitter and loudspeaker audible artifact minus the loudspeaker audible artifact is not greater than the threshold, the hands-free adapter sends the third audio signal to both the FM transmitter and the loudspeaker ().

US Patent:

20070274270, Nov 29, 2007

Filed:

May 25, 2006

Appl. No.:

11/420301

Inventors:

Shawn Michael Jones - Cary IL, US
Jeremy Thomas Jobling - Deerfield IL, US
Sang Yoon Oh - Lake Zurich IL, US

Assignee:

MOTOROLA, INC. - LIBERTYVILLE IL

International Classification:

H04Q 7/24

US Classification:

370338

Abstract:

A system and method for network pairing with two or more wireless communication devices, in which each device includes a wireless transceiver. For each device, the wireless transceiver has indirect communication with the other communication device via a first ad hoc connection to an intermediate communication device, and is capable of direct communication with the other communication device via a second ad hoc connection. The wireless transceivers of the wireless communication devices exchange network address information needed for paired communication between the devices, thus minimizing the need to search and discovery for paired communication.

US Patent:

D3837491, Sep 16, 1997

Filed:

Jul 24, 1996

Appl. No.:

D/057414

Inventors:

Albert Leo Nagele - Wilmette IL
Louis Lundell - Buffalo Grove IL
James Palmer - Deerfield IL
Sang Oh - Schaumburg IL
Leonid Soren - Lincolnwood IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

1403

US Classification:

D14149

US Patent:

60916729, Jul 18, 2000

Filed:

Feb 1, 1999

Appl. No.:

9/241502

Inventors:

Sang Hoon Oh - East Hills NY

Assignee:

Coby Electronics Corporation - Maspeth NY

International Classification:

H04B 120

US Classification:

369 2

Abstract:

A cassette adapter for coupling audio signals from an external source to a cassette player for reproduction by the cassette player. The adapter is user-configurable for use in cassette players of the side-load and front-load type. Additionally, the user-configurability of the adapter overcomes problems inherent in prior art adapters, such as the tendency for the fraying and cutting of the connections between the prior art adapters and the sources of the audio signals. The adapter includes a cassette-shaped housing, a record head disposed in the housing in a position substantially adjacent to a playback head of the cassette player when the adapter is inserted in the cassette player, a connector detachably connectable to a complementary connector, the connector positioned along a peripheral wall of the housing, and a conductive circuit coupled to the record head and the connector.

US Patent:

58898590, Mar 30, 1999

Filed:

May 31, 1996

Appl. No.:

8/657877

Inventors:

Louis Lundell - Buffalo Grove IL
Sang Y. Oh - Schaumburg IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04M 100

US Classification:

379428

Abstract:

A modular housing system (100) comprises a first housing unit (102), a second housing unit (104), and a clamp (600). The first housing unit (102) has a first bottom wall (610) and a first side wall (108). The second housing unit (104) has a second bottom wall (612) and a second side wall (116). The first housing unit (102) defines a first channel (702) which borders the first side wall (108) and includes an first opening (703) along the first bottom wall (610). The second housing unit (104) defines a second channel which borders the second side wall (116) and includes a second opening along the second bottom wall (612). The clamp (600) has a longitudinally extending U-shape defining a base (800), a first attachment wall (802), and a second attachment wall (804). For optionally attaching the first and second housing units (102, 104), the first attachment wall (802) insertably attaches within the first channel (702) and the second attachment wall (804) insertably attaches within the second channel.

US Patent:

57487278, May 5, 1998

Filed:

Nov 4, 1997

Appl. No.:

8/970965

Inventors:

Louis J. Lundell - Buffalo Grove IL
Sang Y. Oh - Schaumburg IL
Terron C. Newman - Country Club Hills IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04M 100

US Classification:

379446

Abstract:

A telephone apparatus (100) includes a base (102) and a handset (104) configurable in a desktop mode and a wall mount mode. Spring loaded detents (132, 134) in the base (102) engage recesses in the handset (104) in wall mount mode to securely retain the handset (104) in a pocket (101) in the base. The base includes a switchable detent mechanism (170) for retracting the detents (132, 134) in response to an actuator (150) when the base (102) is switched from wall mount mode to desktop mode. Thus, the detents (132, 134) do not interfere with the handset (104) when the handset (104) is placed in or withdrawn from the pocket (101).

US Patent:

D3919552, Mar 10, 1998

Filed:

May 8, 1996

Appl. No.:

D/054177

Inventors:

Albert L. Nagele - Wilmette IL
Leonid Soren - Lincolnwood IL
Sang Y. Oh - Schaumburg IL
Michael J. Slipy - Waukegan IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

1403

US Classification:

D14150