Title:
INFORMATION RECORDING MEDIUM AND DATA TRANSMISSION METHOD FOR INFORMATION RECORDING MEDIUM
Document Type and Number:
Japanese Patent JP3519147
Kind Code:
B2
Abstract:
PURPOSE: To always set the sampling point at a stable position by determining the sampling interval of a reception signal and switching the number of cycles of a clock depending on the dot state.
CONSTITUTION: An input bit counter K is set, and the start bit is checked, and the holding processing is performed for a time corresponding to (n) cycles, and thereafter, data of the first bit is taken in. The same procedures as in the past are executed in these steps S1 to S5. Two kinds of holding times are prepared for taking-in of second and following bits, and one of them is selected in accordance with the value of the bit taken in just before. That is, it is discriminated whether data taken in S5 is at the high level or the low level S61, and the holding processing is performed for a time corresponding to n1 cycles S62 if it is at the high level, but the holding processing is performed for a time corresponding to n2 cycles S63 if it is at the low level. After the completion of the holding processing, conventional processings S7 to S9 are executed again.
Inventors:
Takahashi, Nobuyuki
Application Number:
JP29789794A
Publication Date:
April 12, 2004
Filing Date:
November 07, 1994
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
G06K19/07; G06K17/00; H04L25/40; H04L27/14; (IPC1-7): G06K19/07; G06K17/00; H04L25/40; H04L27/14
Attorney, Agent or Firm:
志村 浩