Jeffery J Davis

US Patent:

7355074, Apr 8, 2008

Filed:

Feb 5, 2004

Appl. No.:

10/771414

Inventors:

Jeffery T. Davis - College Park MD, US
Vladimir Sidorov - Richmond VA, US
Frank W. Kotch - New Phila. PA, US

Assignee:

The University of Maryland - College Park MD

International Classification:

C07C 233/05
A61M 15/00
A61K 31/65

US Classification:

564153, 514616, 530328, 12820312, 261DIG 65

Abstract:

A compound containing at least two aromatic rings covalently bonded together, with each aromatic ring containing at least one oxyacetamide-based side chain, the compound being capable of forming a chloride ion channel across a lipid bilayer, and transporting chloride ion across the lipid bilayer.

US Patent:

61607924, Dec 12, 2000

Filed:

Apr 2, 1998

Appl. No.:

9/053624

Inventors:

Winston M. Gadsby - Herndon VA
Jeffery M. Davis - Manassas VA

Assignee:

Hubbell Incorporated - Orange CT

International Classification:

H04J 700

US Classification:

370213

Abstract:

A tone generating circuit comprises a counter circuit having a clock input for receiving a clock signal and a plurality of outputs which generate sequential binary values in response to transitioning of the clock signal; a multiplexer having several inputs, a number of select lines connected to the counter circuit outputs, and at least one output; and a resistor divider network connected to the multiplexer inputs. The multiplexer select lines select one of the multiplexer inputs in accordance with the binary value received from the counter circuit. The multiplexer inputs are connected to different taps on the resistor divider network. The counter selects multiplexer inputs on the falling edge of the clock signal, while the output signal level transitions before the rising edge of the clock signal.

US Patent:

58257810, Oct 20, 1998

Filed:

Dec 20, 1995

Appl. No.:

8/580023

Inventors:

Winston M. Gadsby - Herndon VA
Jeffery M. Davis - Manassas VA

Assignee:

Hubbell, Inc. - Orange CT

International Classification:

H04J 302

US Classification:

370525

Abstract:

A tone generating circuit comprises a counter circuit having a clock input for receiving a clock signal and a plurality of outputs which generate sequential binary values in response to transitioning of the clock signal; a multiplexer having several inputs, a number of select lines connected to the counter circuit outputs, and at least one output; and a resistor divider network connected to the multiplexer inputs. The multiplexer select lines select one of the multiplexer inputs in accordance with the binary value received from the counter circuit. The multiplexer inputs are connected to different taps on the resistor divider network. The counter selects multiplexer inputs on the falling edge of the clock signal, while the output signal level transitions before the rising edge of the clock signal.