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

Signal processing apparatus and methods

Patent 4694490 Issued on September 15, 1987. Estimated Expiration Date: Icon_subject September 15, 2004. 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

3668307

3684823

3833757

3845391

3891792

Remote disconnect-reconnect tap for cable television systems
Patent #: 3987398
Issued on: 10/19/1976
Inventor: Fung

Airborne arrangement for displaying a moving map
Patent #: 4138726
Issued on: 02/06/1979
Inventor: Girault ,   et al.

TV Graphics and mixing control
Patent #: 4218698
Issued on: 08/19/1980
Inventor: Bart ,   et al.

Interactive cable television system
Patent #: 4264925
Issued on: 04/28/1981
Inventor: Freeman ,   et al.

Television captioning system
Patent #: 4310854
Issued on: 01/12/1982
Inventor: Baer

More ...

Inventors

Application

No. 06/317510 filed on 11/03/1981

US Classes:

380/234, Including display of supplemental information348/484, Sound signal379/92.01, Polling380/54, BY MODIFYING OPTICAL IMAGE (E.G., TRANSMISSIVE OVERLAY)725/136Interactive data transmitted in video signal band (e.g., VBI or HBI data)

Examiners

Primary: Cangialosi, Salvatore

Attorney, Agent or Firm

International Classes

H04K 1/00 (20060101)
H04H 1/00 (20060101)
H04N 7/24 (20060101)
H04H 9/00 (20060101)
H04N 7/173 (20060101)
H04N 5/44 (20060101)
H04N 5/46 (20060101)

Abstract

Apparatus and methods for automatically controlling programming transmissions and presentations on television and radio equipment and monitoring the programming transmitted and presented. ("Programming" here means everything transmitted over television or radio intended for communication of entertainment or to instruct or inform.) The Apparatus can handle programming transmitted either over-the-air (hereinafter, "broadcast") or over hard-wire (hereinafter, "cablecast"). The apparatus receive transmissions from as many as one hundred or more channels that are sequentially scanned by one or more scanners/switches that transfer the transmissions to one or more receiver/decoders that identify signals in the programming and separate the signals from the programming transmissions. The signals may then be transferred through one or more decrypters. The separated and possibly wholly or partially decrypted signals are then transferred through one or more processors and buffers to external equipment and/or data recorders. The data recorders are adapted to output data to remote sites on predetermined instructions. In all these functions, the apparatus are governed by one or more controllers. The methods co-ordinate and instruct equipment in the transmission and presentation of radio and television programming, especially in multi-media and multi-channel presentations, and in certain other functions.

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