U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Signal reproducing apparatus

Patent 5247293 Issued on September 21, 1993. Estimated Expiration Date: Icon_subject May 8, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2892039

3647985

Decoder for four channel FM stereophonic composite signal having an Indicating signal wherein the indicating signal is detected and used in the decoding of the four channel composite signal
Patent #: 3980832
Issued on: 09/14/1976
Inventor: Nakamura ,   et al.

Apparatus and method for the identification of specially encoded FM stereophonic broadcasts
Patent #: 4281217
Issued on: 07/28/1981
Inventor: Dolby

Microbial process for 9଱-hydroxylation of steroids
Patent #: 4397947
Issued on: 08/09/1983
Inventor: Marsheck ,   et al.

Remote control device for controlling various functions of one or more appliances
Patent #: 4728949
Issued on: 03/01/1988
Inventor: Platte ,   et al.

Remote control system with key function display provisions
Patent #: 4746919
Issued on: 05/24/1988
Inventor: Reitmeier

Recording/reproducing apparatus with dual display capability
Patent #: 4789973
Issued on: 12/06/1988
Inventor: Mabuchi

Remote control apparatus
Patent #: 4825209
Issued on: 04/25/1989
Inventor: Sasaki ,   et al.

Wireless stereo headphone
Patent #: 4845751
Issued on: 07/04/1989
Inventor: Schwab

More ...

Inventor

Assignee

Application

No. 696963 filed on 05/08/1991

US Classes:

340/825.25, Audio system (e.g., by pulse signal)340/825.72, Wireless link381/309, Stereo earphone381/311, Wireless or for use in diverse381/370, Headphone455/88, Transceiver controlling a separate transceiver or receiver455/100, Body attached or connectedD14/165Portable

Examiners

Primary: Yusko, Donald J.
Assistant: Hill, Andrew

Attorney, Agent or Firm

Foreign Patent References

  • 55-38647 JP. 03/13/1980
  • 57-44276 JP. 03/13/1982
  • 60-203080 JP. 10/13/1985
  • 1-149525 JP. 06/13/1989
  • 3-41650 JP. 02/13/1991

International Classes

H04Q 003/00
H04B 001/00
G11B 019/00
G11B 033/10

Foreign Application Priority Data

1990-05-11 JP

Abstract

A signal reproducing apparatus operating on a wireless basis and having a status signal multiplexed with audio signals and transmitted to a receiver containing a display, the status signal indicating the current operating status of a recording medium player. On receiving the status signal, the display indicates the current operating status of the recording medium player so that the user may accordingly control the player from a distance without the intervention of wires.

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