RADIO WAVE MEASURING METHOD, RADIO WAVE MEASUREMENT CIRCUIT, RADIO WAVE MEASUREMENT PROGRAM, RADIO WAVE MONITORING METHOD, RADIO WAVE MONITORING APPARATUS, RADIO WAVE MONITORING PROGRAM, RADIO WAVE SERVICE AREA INVESTIGATING METHOD, RADIO WAVE SERVICE AREA INVESTIGATING APPARATUS, AND RADIO WAVE SERVICE AREA INVESTIGATING PROGRAM

Japanese Patent JP2004023635

A

To provide a radio wave measurement method, circuit, and program, a radio wave monitoring method, apparatus, and program, and a radio wave service area investigating method, apparatus, and program capable of strictly confirming program contents (contents) so as to early find out a malicious radio wave jack or the like and reducing the operation cost.

The radio wavemonitoring system is configured to include the radio wave monitoring apparatus comprising a radio wave monitoring master unit 21 and radio wavemonitoring slave units (9, 11, 13), the radio wave monitoring slave units (9, 11, 13) receive ISDB-T (Integrated Services Digital Broadcasting-Terrestrial) radio waves transmitted from each of transmission stations (5, 7) and the radio wave monitoring master unit 21 applies comparison processing to measured multiplex signals being results of measuring the ISDB-T radio waves.

ABE TORU
NEGISHI TOSHIHIRO
ARISHIRO MASAHIKO
KANAMORI TAKAKO
NAKAKITA HISAO
WAKAI KAZUAKI

JP2002178565A

January 22, 2004

June 19, 2002

Click for automatic bibliography generation  

JAPAN BROADCASTING CORP

H04B17/00; H04H20/00; H04H20/06; H04H20/12; H04N17/00; H04H20/28; H04H60/37; H04H60/66; H04L69/40; (IPC1-7): H04H1/00; H04B17/00; H04L29/14; H04N17/00

JP2001008239A	2001-01-12
JP2001103063A	2001-04-13
JPH11168759A	1999-06-22
JPH11331168A	1999-11-30
JP2001186127A	2001-07-06
JP2002064545A	2002-02-28

US4230990A

1980-10-28

Isono Dozo

Previous Patent: スイッチング電源装置

Next Patent: MULTI-POINT FEED CYLINDER DIPOLE ANTENNA AND MULTI-STAGE CYLINDER DIPOLE ANTENNA