Michael A Hirsch

US Patent:

D469633, Feb 4, 2003

Filed:

Nov 3, 2001

Appl. No.:

29/151532

Inventors:

Michael H. Hirsch - Dallas TX 75231

International Classification:

0603

US Classification:

D 6480

US Patent:

D469634, Feb 4, 2003

Filed:

Nov 3, 2001

Appl. No.:

29/151533

Inventors:

Michael H. Hirsch - Dallas TX 75231

International Classification:

0603

US Classification:

D 6480

US Patent:

D469635, Feb 4, 2003

Filed:

Nov 3, 2001

Appl. No.:

29/151534

Inventors:

Michael H. Hirsch - Dallas TX 75231

International Classification:

0603

US Classification:

D 6480

US Patent:

8155641, Apr 10, 2012

Filed:

Dec 29, 2008

Appl. No.:

12/345191

Inventors:

Michael Hirsch - Los Angeles CA, US

International Classification:

H04W 4/00

US Classification:

455431, 4554221, 455296, 455 631

Abstract:

A system and method are provided for preventing lapses of communication in radio voice communications. The system may include a communications transceiver for transmitting signals through a communications antenna. A protection antenna, which may be isolated from the communications antenna, may obtain a received signal from a remote transmitter. The received signal may contain a signal of interest that may be combined with interference from the communications the communications transceiver. A protection receiver, coupled to the protection antenna, may obtain a sample of a transmit signal from the communications transceiver. Using the sample of this transmit signal, the protection receiver may remove the interference from the received signal to obtain the signal of interest. If it is determined that a communications channel is blocked, the protection receiver may store the transmit signal and later retransmit the stored transmit signal when the communication channel is unblocked.

US Patent:

45675635, Jan 28, 1986

Filed:

Jul 11, 1983

Appl. No.:

6/512667

Inventors:

Michael Hirsch - Pacific Palisades CA

Assignee:

Energy Management Corporation - Los Alamitos CA

International Classification:

A01G 2516
B05B 1212
G06F 1554

US Classification:

364420

Abstract:

Irrigation control apparatus includes: (a) a mast having a lower portion adapted to be removably inserted into the earth, (b) soil moisture sensing structure associated with or separate from said lower portion of the mast, and (c) data transmitting apparatus on an upper portion of the mast and operatively connected with said sensing structure for transmitting to a central station data indicative of soil moisture conditions at the location of the mast.

US Patent:

43961495, Aug 2, 1983

Filed:

Dec 30, 1980

Appl. No.:

6/221519

Inventors:

Michael Hirsch - Pacific Palisades CA

Assignee:

Energy Management Corporation - Gardena CA

International Classification:

A01G 2516
B05B 1212

US Classification:

239 63

Abstract:

Irrigation control apparatus includes a mast or masts, a soil moisture sensor or sensors associated with a lower portion of each mast, data transmission apparatus associated with an upper portion of each mast to transmit data continuously measured by the sensor, and circuitry to process that transmitted data.

US Patent:

42954738, Oct 20, 1981

Filed:

May 24, 1979

Appl. No.:

6/042247

Inventors:

George Diamond - Los Angeles CA
James Forrester - Malibu CA
Michael Hirsch - Pacific Palisades CA
Ran Vas - Encino CA

International Classification:

D61N 500

US Classification:

178695

Abstract:

An apparatus and method in which the amount of movement of a boundary in one or more dimensions on a dynamically movable structure or a series of sequential visual representations of said structure is measured. The boundary movement is measured by the degree of shiftable movement between light and dark areas. The motion may be analyzed and quantified in terms of linear motion or area change and an electrical analog of such motion is generated in format suitable for recordation by conventional reproducing or display mechanisms, as for example, a conventional chart recorder. In one embodiment, movement in one dimension, e. g. a linear dimension, is detected but not necessarily quantified. In another embodiment, the movement in the linear dimension is detected and measured so as to provide a quantification thereof. In a further embodiment the movement is measured in at least two dimensions to provide quantification of area changes.