Title:
MAGNETIC RECORDING AND REPRODUCING DEVICE
Document Type and Number:
Japanese Patent JPH0413278
Kind Code:
A
Abstract:
PURPOSE:To take a symbol synchronization in a synchronizing detection signal part just behind a preamble part by writing the signal of a pattern, which is not generated in a data and can be synchronized with a symbol clock, into the preamble part. CONSTITUTION:The preamble part is provided to record the data to generate a clock synchronized with a data in the front part of a digital data to be recorded, and a symbol synchronizing detection part 17 is provided to record the data to get the clock for the unit of the symbol of the digital data. In the preamble part, a means 49 is provided to record the presync signal of the pattern which can not be generated the clock synchronized with a symbol clock to divide the information unit of data in reproducing, and a means is provided to generate a symbol clock 26 synchronized with the presynchronizing signal in the case of reproducing. In this case, the pattern written in the preamble part is not generated in the data and gives the signal synchronized with the synchronizing detection signal. Thus, the synchronizing detection can surely be performed.
Inventors:
OTA MASAYUKI
IDO KIHEI
IDO KIHEI
Application Number:
JP11480190A
Publication Date:
January 17, 1992
Filing Date:
April 28, 1990
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G11B20/12; G11B20/14; (IPC1-7): G11B20/14
Attorney, Agent or Firm:
Masuo Oiwa (2 outside)
Next Patent: JPH0413279