Title:
IMAGE INFORMATION RECORD REPRODUCTION DISK DEVICE
Document Type and Number:
Japanese Patent JPH05282845
Kind Code:
A
Abstract:
PURPOSE:To make it possible to process a parallel multi-task by controlling I/O of image information and standard data in conformity with positional information from a clock counter to each head disk and recording and reproducing the image data and standard data in an image buffer memory section, a main buffer memory section and a device memory section. CONSTITUTION:Since the data of a clock counter 2 is synchronized with a reference timing signal 13 from a disk, the rotary position of the disk corresponds to the value of the clock counter on a 1 to 1 basis. The mounting positions of head from 10a to 10e and a rotation detector 12 are decided in advance. Therefore, a reference position varies with one reference timing signal per one round of the disk 1. Comparison between a rotary detected position and the reference position makes it possible to compute an offset value from the current rotary position of the disk, thereby recording and producing the image information and standard information in an image buffer memory section, a main buffer memory section and a device memory section.
Inventors:
Yuji Sano
Application Number:
JP7678092A
Publication Date:
October 29, 1993
Filing Date:
March 31, 1992
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
G06F3/08; G06F9/06; G06F17/30; G11B7/00; G11B7/004; G11B20/00; G11B20/10; G11B27/10; G11C11/401; H04N5/93; H04N5/937; (IPC1-7): G11B27/10; G06F3/08; G06F9/06; G06F15/40; G11B7/00; G11B20/00; G11B20/10; G11C11/401; H04N5/93
Attorney, Agent or Firm:
Noriyuki Noriyuki