Global Patent Index - EP 1035384 A4

EP 1035384 A4 2001-12-19 - AIR CONDITIONING UNIT

Title (en)

AIR CONDITIONING UNIT

Title (de)

KLIMAANLAGE

Title (fr)

ORGANE DE CONDITIONNEMENT D'AIR

Publication

EP 1035384 A4 (EN)

Application

EP 99969783 A

Priority

  • JP 9905307 W
  • JP 27738798 A

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 (main, further and additional classification)

F24F 1/00

IPC 8 full level (invention and additional information)

F24F 13/20 (2006.01); F24F 13/22 (2006.01); F24F 13/30 (2006.01)

CPC (invention and additional information)

F24F 1/0059 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

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

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