Title:
放送または録音セグメントを符号化/復号してその視聴を監視する方法と装置
Document Type and Number:
Japanese Patent JP4171493
Kind Code:
B2
Abstract:
Methods and apparatus for encoding and decoding information in broadcast or recorded segments signals are described. In certain embodiments, an audience monitoring system encodes identification information x(w) in the audio signal portion of a broadcast or recorded segment using spread spectrum encoding (100). A personal monitoring device (200) receives an acoustically reproduced version of the broadcast or recorded signal via a microphone (230), decodes the identification information from the audio signal portion despite significant ambient noise and stores (260) this information, automatically providing a diary for the audience member which is later uploaded to a centralized facility. A separate monitoring device (700) decodes additional information from the broadcast signal, which is matched with the audience diary information at the central facility. This monitor (700) may simultaneously send data to the centralized facility using a dial-up telephone line, and receive data from the centralized facility through a signal encoded using a spread spectrum technique and modulated with a broadcast signal from a third-party.
Inventors:
Ajara, Victor A.
Cohen, Gerald Bee.
Jensen, James M.
Lynch, Wendell Dee.
Arbi, Juan Cee.
Cohen, Gerald Bee.
Jensen, James M.
Lynch, Wendell Dee.
Arbi, Juan Cee.
Application Number:
JP2006040658A
Publication Date:
October 22, 2008
Filing Date:
February 17, 2006
Export Citation:
Assignee:
Arbitron Incorporated
International Classes:
H04N7/26; H04N17/00; C09J133/04; C09J133/06; H03M5/02; H04B17/00; H04H20/31; H04H20/33; H04H60/31; H04H60/37; H04H60/43; H04H60/44; H04H60/46; H04J99/00; H04L27/00; H04N5/76; H04N7/08; C08L91/00; H04H60/40; H04H60/94
Domestic Patent References:
| JP2283191A | ||||
| JP61269596A |
Foreign References:
| US4718106 |
Attorney, Agent or Firm:
Iat International Patent Business Corporation