Title:
CODE IDENTIFYING DEVICE OF RADIO EQUIPMENT
Document Type and Number:
Japanese Patent JP3566008
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To simplify signal processing and to customize an IC by dividing a signal which is sampled based on an edge signal that is detected from a code signal, comparing it with reference partition information, testing it and deciding correct information.
SOLUTION: This device operates a sampling circuit 20 based on a signal that is generated by a sampling clock circuit 21 with a rise of various pulse signals of a code signal that is detected by a rise detecting circuit 2, samples a code signal from a filter 1 and supplies logic H and L at the time of a rise of a signal to an S/P converting circuit 22. A signal element detecting circuit 24 counts an output pulse with the logic H and L and sets flag setting circuits 26 and 27 to the logic H and an error flag setting circuit 28 to the logic L when output pulses reaches a prescribed value. A register 8 sends indexes that correspond to each part of an A part, a header part and an ID part to a collating part 11 according to the result that is tested by testing circuits 29 to 31. Data of memory 25 and 12 are collated with these indexes as a key, and when they coincide, they are supplied to a door lock timer 13, and the timer 13 outputs door unlock and door lock signals.
Inventors:
Yasuhiro Ono
Takehiko Shimizu
Takehiko Shimizu
Application Number:
JP30671896A
Publication Date:
September 15, 2004
Filing Date:
November 18, 1996
Export Citation:
Assignee:
Calsonic Kansei Co., Ltd.
International Classes:
E05B49/00; H04Q9/00; H04Q9/14; (IPC1-7): H04Q9/14; E05B49/00; H04Q9/00
Domestic Patent References:
| JP7250383A | ||||
| JP2183697A | ||||
| JP1293096A |
Attorney, Agent or Firm:
Hiroaki Tazawa
Konobu Kato
Konobu Kato