MICHAEL PETER SCHULHOF
Pilots at 58 St, New York, NY
License number
New York A1692042
Issued Date
Oct 2015
Expiration Date
Oct 2016
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
150 E 58Th St, New York, NY 10155
Professional information
Chairman At Gti Group Llc
Position:
Chairman at GTI Group LLC
Location:
Greater New York City Area
Industry:
Aviation & Aerospace
Work:
GTI Group LLC
-
Chairman
sony corporation
1974 - 1996
-
president
Education:
Brandeis University 1967 - 1970
ph.d, physics
ph.d, physics
Michael Schulhof
Location:
Greater New York City Area
Industry:
Venture Capital & Private Equity
Audio Apparatus
US Patent:
4610024, Sep 2, 1986
Filed:
Dec 28, 1979
Appl. No.:
6/107784
Inventors:
Michael P. Schulhof - New York NY
Assignee:
Sony Corporation - Tokyo
International Classification:
H04R 304
US Classification:
381103
Abstract:
An audio apparatus includes a signal generating circuit for generating a first electrical audio frequency signal corresponding to audio information received from a source, such as a phonograph turntable, tape recorder or FM/AM tuner. A loudspeaker generates an acoustic signal in response to the first audio frequency signal, and a microphone pick-up receives the acoustic signal for generating a corresponding second electrical audio frequency signal. A filter network then separates the first and second audio frequency signals into respective low, mid and high-frequency ranges, and three comparator circuits compare the first and second audio frequency signals in each frequency range and produce a respective error signal in each frequency range. A tone control or equalizing circuit then adjusts the levels of the several frequency ranges of the first audio frequency signal in response to the respective error signals, whereby to ensure accurate acoustic signal generation by the loudspeaker corresponding to the first audio frequency signal, regardless of room and loudspeaker design.