Disk recording and sound reproducing device using pitch change a

Details Disk recording and sound reproducing device using pitch change a Disk recording and sound reproducing device using pitch change a

1997-09-12

1998-08-11

Psitos, Aristotelis M.

Dynamic information storage or retrieval

Signal processing by storage and subsequent retrieval

369 54, 369 58, 84602, G11B 390, G10H 700

Patent

active

057937397

ABSTRACT:
In a disk recording and sound reproducing device, a disk is intermittently accessed for data read out to write the disk readout data into a memory. The written data in the memory are continually read out and expanded to output the expanded data as playback data signals. Data to be recorded are continually written into the memory, during which time the data to be recorded are intermittently read out from the memory 10 to be demodulated so as to record the demodulated data onto the disk. A clock controller, in accordance with a pitch change instruction, varies the rate of data readout from the memory (in reproduction) or the rate of data writing into the memory (in recording). Corresponding to the data readout or writing rate, a memory controller controls the intervals at which the data are read out from the disk (in reproduction) or the intervals at which the data are recorded onto the disk (in recording). Further, in accordance with a timing shift instruction, a system controller varies the intervals between the intermittent data writing into the memory so as to selectively change the reproduction timing of a specific portion of the data.

REFERENCES:
patent: 4792975 (1988-12-01), MacKay
patent: 5313011 (1994-05-01), Koguchi
patent: 5337295 (1994-08-01), Maeda
patent: 5426540 (1995-06-01), Mikami
patent: 5469508 (1995-11-01), Vallier
patent: 5471450 (1995-11-01), Yonemitsu et al.
patent: 5502700 (1996-03-01), Shinada

Affiliated with

Also associated with

Rating

Disk recording and sound reproducing device using pitch change a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disk recording and sound reproducing device using pitch change a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk recording and sound reproducing device using pitch change a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-396911