Harold Louis Williams
Architects at Wilshire Blvd, Los Angeles, CA
License number
Colorado 301805
Issued Date
Apr 20, 1979
Renew Date
Jul 31, 1999
Expiration Date
Jul 31, 1999
Type
Architect
Address
Address
3250 Wilshire Blvd STE 1305, Los Angeles, CA 90010
Professional information
Integrated Systems Manager At Adt Security Services, Inc.
Position:
Integrated Systems Manager at ADT Security Services, Inc.
Location:
Greater Los Angeles Area
Industry:
Security and Investigations
Work:
ADT Security Services, Inc.
since Feb 2007
-
Integrated Systems Manager
Education:
California State University-Los Angeles
Harold Williams
Work:
ST. JAMES' EPISCOPAL SCHOOL - Los Angeles, CA
ASSOCIATE TEACHER MARCUS GARVEY ELEMENTARY SCHOOL - Los Angeles, CA
THIRD GRADE TEACHER VIEW PARK PREPARATORY CHARTER SCHOOL - Los Angeles, CA
TEACHING ASSISTANT LOREN MILLER ELEMENTARY SCHOOL - Los Angeles, CA
SPECIAL EDUCATION TEACHER
ASSOCIATE TEACHER MARCUS GARVEY ELEMENTARY SCHOOL - Los Angeles, CA
THIRD GRADE TEACHER VIEW PARK PREPARATORY CHARTER SCHOOL - Los Angeles, CA
TEACHING ASSISTANT LOREN MILLER ELEMENTARY SCHOOL - Los Angeles, CA
SPECIAL EDUCATION TEACHER
Education:
South Carolina State University
Bachelor of Arts in Political Science South Carolina University
Bachelors of Art in Political Science
Bachelor of Arts in Political Science South Carolina University
Bachelors of Art in Political Science
Self Employed At Chinese Yoyos
Position:
Self Employed at Chinese Yoyos
Location:
Greater Los Angeles Area
Industry:
Entertainment
Work:
Chinese Yoyos
-
Self Employed
Dual Frequency Anti-Theft System
US Patent:
4471344, Sep 11, 1984
Filed:
Apr 29, 1982
Appl. No.:
6/373251
Inventors:
Harold B. Williams - Los Angeles CA
Assignee:
ICI Americas Inc. - Wilmington DE
International Classification:
G08B 1318
US Classification:
340572
Abstract:
An article surveillance system employs a label or tag containing a non-linear impedance element, such as a semiconductor diode, connected to a metal antenna loop configured to pick up two distinct radio frequency transmissions displaced on either side of a selected center frequency. The non-linear impedance element connects opposing sides of the metal loop forming a tuned tank circuit that resonates at twice the selected center frequency. Two transmitters generate separate tone modulated radio frequency and continuous wave radio frequencies equally displaced on opposite sides of the center frequency that are fed to respective orthogonally disposed dipole radiating antenna strips on opposite sides of a surveillance area. The dipole strips for different frequencies are at right angles on each side, while those for the same frequency are at right angles to one another on opposite sides to achieve cross polarized transmission of both signals within the surveillance area. These signals are mixed by summing in the non-linear impedance to resonate the antenna tank circuit at double the center frequency which is reradiated to the receiver antennas on each side where a very narrow band receiver detects it.
Harold Marvin Williams, Los Angeles CA - Lawyer
Address:
1200 Getty Center Dr, Los Angeles, CA 90049
Experience:
76 years
Jurisdiction:
California (1950)
Law School:
Harvard Univ Law School
Memberships:
California State Bar (1950)