EP 1035384 A4 20011219 - AIR CONDITIONING UNIT
Title (en)
AIR CONDITIONING UNIT
Title (de)
KLIMAANLAGE
Title (fr)
ORGANE DE CONDITIONNEMENT D'AIR
Publication
Application
Priority
- JP 9905307 W 19990929
- JP 27738798 A 19980930
Abstract (en)
[origin: EP1035384A1] A digital broadcasting receiver is provided which can reproduce a carrier quickly and capture a desired signal at high speed. A carrier reproduction phase error detection circuit (6) detects a phase error voltage in accordance with a demodulation output obtained by demodulating a demodulated wave of a modulated wave during a predetermined section in a header section. A peak number calculation circuit (92) calculates an error frequency between a desired reception frequency and a reproduction carrier frequency in accordance with the phase error voltage. A differential coefficient calculation circuit (94) calculates the polarity of the error frequency. A step frequency control circuit (96) converts the calculated error frequency having the calculated polarity into a step frequency width for automatic frequency control. The reproduction carrier frequency is scanned at the converted step frequency width until a frame sync is established after the frame sync is detected. It is therefore possible to reproduce the carrier quickly and capture the desired signal at high speed. <IMAGE>
IPC 1-7
IPC 8 full level
F24F 1/00 (2006.01); F24F 1/0323 (2019.01); F24F 13/20 (2006.01); F24F 13/22 (2006.01); F24F 13/30 (2006.01)
CPC (source: EP US)
F24F 1/0323 (2019.01 - EP US)
Citation (search report)
- [X] US 4100764 A 19780718 - MURANO MITSUO
- [X] US 3756039 A 19730904 - RIELLO V
- [A] EP 0738857 A2 19961023 - FUJITSU GENERAL LTD [JP]
- [A] EP 0821206 A2 19980128 - IMI AIR CONDITIONING LTD [GB]
- [A] PATENT ABSTRACTS OF JAPAN vol. 007, no. 287 (M - 264) 21 December 1983 (1983-12-21)
- See references of WO 0019150A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1035384 A1 20000913; EP 1035384 A4 20011219; EP 1035384 B1 20051130; AU 5997699 A 20000417; AU 733859 B2 20010531; CN 1148536 C 20040505; CN 1275191 A 20001129; CN 2397414 Y 20000920; DE 69928639 D1 20060105; DE 69928639 T2 20060810; ES 2251259 T3 20060416; JP 2000104943 A 20000411; JP 3052942 B2 20000619; WO 0019150 A1 20000406
DOCDB simple family (application)
EP 99969783 A 19990929; AU 5997699 A 19990929; CN 99243295 U 19990929; CN 99801486 A 19990929; DE 69928639 T 19990929; ES 99969783 T 19990929; JP 27738798 A 19980930; JP 9905307 W 19990929