Information reproducing system and method capable of reproducing in desired reproducing time

• US 6,262,951 B1
• Filed: 03/19/1999
• Issued: 07/17/2001
• Est. Priority Date: 03/20/1998
• Status: Expired due to Fees

• Current Assignee: Pioneer Electronic Corporation (Pioneer Corporation)
• Original Assignee: Pioneer Electronic Corporation (Pioneer Corporation)
• Inventors: Endo, Jiro, Park, Youngju, Shimizu, Yuji, Ishii, Hidehiro, Irisawa, Takashi
• Primary Examiner(s): DINH, TAN X
• Application Number:
  US09/271,987
• Time in Patent Office: 851 Days
• Field of Search: 369/33, 369/32, 369/47.1, 369/47.49, 369/44.28, 369/47.3
• US Class Current: 369/30.1
• CPC Class Codes: G11B 17/0436 with opening mechanism of the cartridge shutter G11B17/0438 takes precedence

Abstract

An arbitrary desired reproducing time is set for reproducing information recorded on a recording medium, and an ordinary reproducing time is obtained based on management information recorded on the recording medium when the recorded information is reproduced at a standard reproducing speed. A skipping rate is calculated from the desired reproducing time and the ordinary reproducing time. A reproducing device is provided for reproducing the information recorded on the recording medium in the set desired reproducing time at the calculated skipping rate.

Claims

1. An information reproducing system comprising:

setting means for setting an arbitrary desired reproducing period of time for reproducing information recorded on a recording medium;

means for obtaining an ordinary reproducing period of time based on management information recorded on the recording medium when the recorded information is reproduced at a standard reproducing speed;

calculating means for calculating a skipping rate from the desired reproducing time and the ordinary reproducing time;

preparing means for preparing a reproduction address map from the skipping rate; and

reproducing means for reproducing the information recorded on the recording medium in the set desired reproducing time at the calculated skipping rate.

2. The system according to claim 1 further comprising instructing means for instructing skipping of information during the reproduction,

means responsive to the instruction by the instructing means for skipping the information after the instruction for a predetermined time, and means for updating the reproduction address map at the timing of the skipping of the information.

3. The system according to claim 2 wherein the predetermined time is increased with the number of repetitions of the instruction.

4. An information reproducing method for reproducing information in a desired reproducing time, comprising:

setting an arbitrary desired reproducing period of time for reproducing information recorded on a recording medium;

obtaining an ordinary reproducing period of time based on management information recorded on the recording medium when the recorded information is reproduced at a standard reproducing speed;

calculating a skipping rate from the desired reproducing time and the ordinary reproducing time;

preparing a reproduction address map from the skipping rate; and

reproducing the information recorded on the recording medium in the set desired reproducing time at the calculated skipping rate.

5. An information reproducing method as claimed in claim 4, further comprising:

instructing skipping of information during the reproduction;

skipping the information for a predetermined time in response to the instruction; and

updating the reproduction address map at the timing of the skipping of the information.

6. An information reproducing method as claimed in claim 5, wherein said predetermined time is increased with the number of repetitions of the instruction.