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Title: US5940135: Apparatus and method for encoding and decoding information in analog signals
[ Derwent Title ]

Country: US United States of America

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12 pages

 
Inventor: Petrovic, Rade; Wilmington, MA
Winograd, Joseph M.; Cambridge, MA
Jemili, Kanaan; Woburn, MA
Metois, Eric; Somerville, MA

Assignee: Aris Technologies, Inc., Cambridge, MA
other patents from ARIS TECHNOLOGIES, INC. (742578) (approx. 4)
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Published / Filed: 1999-08-17 / 1997-05-19

Application Number: US1997000858562
IPC Code: Advanced: G06T 1/00; H04H 20/31;
Core: more...
IPC-7: H04N 7/087;

ECLA Code: H04H20/31; G06T1/00W2;

U.S. Class: Current: 348/473; 341/139; 348/469; 380/202; 380/253; 705/058; 725/151;
Original: 348/473; 348/469; 348/907; 348/001; 380/006; 455/002; 341/139; 375/209;

Field of Search: 348/473,614,1,469,907 375/209 380/006 455/002 341/139 H04N 7087

Priority Number:
1997-05-19  US1997000858562

Abstract:     Apparatus and methods are provided for encoding, storing and decoding auxiliary information on an analog source signal in a way which has minimal impact on the human perception of the source information when the source signal is applied to an appropriate output device, such as a speaker or a display monitor. The autocorrelation function of a host signal is modulated according to the value of an auxiliary information signal by adding a host modifying signal to the host signal. The auxiliary signal is decoded by generating the autocorrelation function of the encoded signal and extracting the auxiliary signal according to well-known signal extraction techniques.

Attorney, Agent or Firm: Rothwell, Figg, Ernst & Kurz ;

Primary / Asst. Examiners: Peng, John K.; Desir, Jean W.
INPADOC Legal Status: Show legal status actions          Buy Now: Family Legal Status Report

Designated Country: CA EP JP KR 

Family: Show 33 known family members
First Claim:
Show all 27 claims		 What is claimed is:     1. A method for encoding information symbols onto an analog host signal, comprising the steps of:
  • determining a short-term autocorrelation function value of said host signal;
  • determining a value of an auxiliary information signal containing an information symbol;
  • calculating a value of the short-term autocorrelation function of said host signal corresponding to said determined value of said auxiliary information signal according to a predefined relationship between auxiliary information signal value and host signal autocorrelation value;
  • developing a host modifying signal for modifying said host signal such that the short-term autocorrelation function value of the modified host signal will correspond to said calculated value; and
  • modifying said host signal with said host modifying signal.
    •


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Forward References: Show 125 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (125)   |   Backward references (11)   |   Citation Link

Buy
PDF		 Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 9pp US4564862  1986-01 Cohen   Ghost signal elimination circuit
Get PDF - 84pp US5319453  1994-06 Copriviza et al.  Airtrax Method and apparatus for video signal encoding, decoding and monitoring
Get PDF - 7pp US5379345  1995-01 Greenberg  Radio Audit Systems, Inc. Method and apparatus for the processing of encoded data in conjunction with an audio broadcast
Get PDF - 19pp US5414729  1995-05 Fenton  NovAtel Communications Ltd. Pseudorandom noise ranging receiver which compensates for multipath distortion by making use of multiple correlator time delay spacing
Get PDF - 14pp US5526427  1996-06 Thomas et al.  A.C. Nielsen Company Universal broadcast code and multi-level encoded signal monitoring system
Get PDF - 28pp US5737329  1998-04 Horiguchi  Kabushiki Kaisha Toshiba Spread spectrum communication apparatus
Get PDF - 50pp US5764763  1998-06 Jensen et al.   Apparatus and methods for including codes in audio signals and decoding
Get PDF - 9pp US5787334  1998-07 Fardeau et al.  Ceridian Corporation Method and apparatus for automatically identifying a program including a sound signal
Get PDF - 4pp US5805635  1998-09 Andrews, Jr. et al.  The United States of America as represented by the Secretary of the Navy Secure communication system
Get PDF - 21pp US5809064  1998-09 Fenton et al.  NovAtel, Inc. Pseudorandom noise ranging receiver which compensates for multipath distortion by dynamically adjusting the time delay spacing between early and late correlators
Get PDF - 22pp US5850249  1998-12 Massetti et al.  Nielsen Media Research, Inc. Receiver monitoring system with local encoding
       
Foreign References: None

Other Abstract Info: DERABS G1999-024929

Continuity Data:
Application Number Filed Notes
US1997000858562 1997-05-19  is a related to the prior publication
     US20040151316A1 issued 2004-08-05  Apparatus and method for embedding and extracting information in analog signals using distributed signal features and replica modulation
US1997000858562 1997-05-19  is a related to the prior publication
     US20090262932A1 issued 2009-10-22  EMBEDDING AND EXTRACTION OF INFORMATION FROM AN EMBEDDED CONTENT USING REPLICA MODULATION
13315595   is a continuation of
US2009000426158  2009-04-17
     US8085935 issued 2011-12-27   Embedding and extraction of information from an embedded content using replica modulation
12426158   is a continuation of
US2004000763288  2004-01-26   (pending) [presumed granted]
     US7606366 issued 2009-10-20   Apparatus and method for embedding and extracting information in analog signals using distributed signal features and replica modulation
12426158   is a continuation of
US2004000763288  2004-01-26
     US7606366 issued 2009-10-20   Apparatus and method for embedding and extracting information in analog signals using distributed signal features and replica modulation
US2004000763288 2004-01-26  is a continuation of
US2002000206826  2002-07-29   (granted)
     US6683958 issued 2004-01-27   Apparatus and method for embedding and extracting information in analog signals using distributed signal features and replica modulation
US2004000763288   is a continuation of
US2002000206826  2002-07-29
     US6683958 issued 2004-01-27   Apparatus and method for embedding and extracting information in analog signals using distributed signal features and replica modulation
US2002000206826 2002-07-29  is a continuation of
US1998000106213  1998-06-29   (granted)
     US6427012 issued 2002-07-30   Apparatus and method for embedding and extracting information in analog signals using replica modulation
US2002000206826   is a continuation of
US1998000106213  1998-06-29
     US6427012 issued 2002-07-30   Apparatus and method for embedding and extracting information in analog signals using replica modulation
US1998000106213 1998-06-29  is a continuation in part of
US1997000974920  1997-11-20   (granted)
     US6175627 issued 2001-01-16   Apparatus and method for embedding and extracting information in analog signals using distributed signal features
US1998000106213   is a continuation in part of
US1997000974920  1997-11-20
     US6175627 issued 2001-01-16   Apparatus and method for embedding and extracting information in analog signals using distributed signal features
>US1997000858562<   is a continuation in part of
US1997000974920  1997-11-20
     US6175627 issued 2001-01-16   Apparatus and method for embedding and extracting information in analog signals using distributed signal features
US1998000106213 1998-06-29  is a continuation in part of
>US1997000858562<  1997-05-19   (granted)
     US5940135 issued 1999-08-17   Apparatus and method for encoding and decoding information in analog signals
US1998000106213   is a continuation in part of
>US1997000858562<  1997-05-19
     US5940135 issued 1999-08-17   Apparatus and method for encoding and decoding information in analog signals
US1997000974920   is a continuation in part of
>US1997000858562<  1997-05-19
     US5940135 issued 1999-08-17   Apparatus and method for encoding and decoding information in analog signals


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