DR. LONG H NGUYEN, M.D.
Psychiatric at 15 St, Austin, TX

2006017, Aug 3, 2006

Dec 30, 2004

11/027704

Michael Mills - Austin TX, US
Long Nguyen - Austin TX, US

H04M 1/00

379395010

A driver is operated to drive signals from an integrated circuit. Operating the driver generates interference at substantially a first frequency that may interfere with circuitry sharing a power supply with the driver. A supply node is repeatedly coupled to and decoupled from the driver at substantially a second frequency higher than the first frequency to help supply power to the driver and to help prevent interference from propagating to circuitry sharing the power supply.

5287352, Feb 15, 1994

Jul 17, 1992

7/916054

Andrew W. Jackson - Austin TX
Long V. Nguyen - Austin TX

Rolm Company - Santa Clara CA

H04J 322

370 82

A method and apparatus for transferring data between telephony communications lines having different frame transmission rates. A downlink data frame according to a first protocol (e. g. a ROLMlink frame) is transmitted, at a first data rate, from a private branch exchange (PBX) to a telephone's network interface. One or more fields of data from this frame are collected in shift register which is internal to the interface. After collection, the data is injected into a downlink data frame of the telephone's internal protocol (e. g. a GCI frame), which is being transmitted on the telephone side of the interface at a second data rate (different from the first data rate). Simultaneously with the injecting, one or more fields of data from an uplink data frame of the telephone's internal protocol are shifted into the same register for later injection into an uplink data frame, of the external protocol, destined for the PBX. This later injection occurs simultaneously with data from another downlink data frame, from the PBX side of the interface, being collected in the register.

2011008, Apr 7, 2011

Oct 1, 2009

12/571434

Long V. Nguyen - Austin TX, US
Yan Zhou - Austin TX, US

H04L 12/66

370352

A method of controlling a subscriber line interface circuit (SLIC) includes performing a plain old telephone services (POTS) detect at a customer premises using a customer premises SLIC. Injection of POTS services by the customer premises SLIC is disabled, if POTS is detected.

5287399, Feb 15, 1994

Jul 17, 1992

7/916058

Andrew W. Jackson - Austin TX
Long V. Nguyen - Austin TX
Larry A. Stell - Austin TX

Rolm Company - Santa Clara CA

H04M 1100, H04B 138

379 58

A method and apparatus for preprocessing digital voice data enroute to or from a Telephone's CODEC. The apparatus supports a CODEC directly connected to an internal bus and using a separate CODEC clock and sync signal to control transfers between a telephony link/internal bus interface and the CODEC. According to an embodiment of the present invention, an auxiliary processing device (connected to the internal bus side of the phone) is provided with means to process the digital voice information before sending it uplink or to the CODEC. This is accomplished without changing the position of the incoming voice field.