Robert L Ashlock

US Patent:

20020095662, Jul 18, 2002

Filed:

Aug 28, 2001

Appl. No.:

09/941255

Inventors:

Robert Ashlock - Irvine CA, US
Chirjeev Singh - Irvine CA, US
Hossein Alavi - Woodbridge, CA
Mehdi Tavassoli - Mississauga, CA

International Classification:

G06F009/45

US Classification:

717/136000

Abstract:

One embodiment of the invention relates to a media adapter adapted for coupling a networking device to a power line. This embodiment of the media adapter comprises a physical layer coupled to the power line, a medium access control (MAC) layer in communication with the physical layer, and an inter-working unit in communication with the MAC layer. The inter-working unit is adapted to translate information from a first format into a second format, which differs from the first format, to enable information to be received and transmitted over the power line.

US Patent:

43934919, Jul 12, 1983

Filed:

Nov 5, 1980

Appl. No.:

6/204300

Inventors:

Robert L. Ashlock - Diamond Bar CA
Carl E. Gabrielson - Santa Ana CA
Douglas P. Kerr - Irvine CA
David J. Rasmussen - Riverside CA
Theodore M. Stump - Costa Mesa CA
Charles W. Thode - Tustin CA

Assignee:

Anaconda-Ericsson - Greenwhich CT

International Classification:

H04J 300

US Classification:

370 13

Abstract:

An automatic self-test apparatus for use in a digital multiplexed communication system and self-testing idle circuitry coupled to idle telephone lines. The apparatus utilizes a tone generator which generates digital words describing an analog test signal and a detector which detects digital data on the internal data bus which describes this self-test analog signal. The data from the tone generator is coupled to the circuitry connected to the idle line through a time division multiplexer under the control of a controller consisting of a programmed microprocessor. The microprocessor controls when the transfer is made and to which telephone line it is directed. This control is accomplished by writing a control word to a multiplexer naming the source and destination for the transfer and the time slot in which it is to occur. When the circuitry connected to the idle line functions properly, the controller proceeds to the next idle line. If a malfunction is detected, the controller sets an alarm.