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EP0544504A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

A disc reproducing apparatus and recording apparatus

Assignee: Sony Corp
•
Filing: 1992-11-24
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Granted: —
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Expires: 2012-11-24
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Abstract

Abstract The present invention is directed to a disc reproducing apparatus in which a signal recorded on a disc is optically read out from the disc and reproduced as an audio signal. This disc reproducing apparatus comprises an optical pickup (9) tracing tracks formed on the disc to optically read out a signal recorded on the disc, a first decoding unit (10) for decoding an output signal of the optical pickup and outputting the same at a first transfer rate, a memory (14) in which digital data output from the first decoding unit is stored temporarily, a controller (13) for controlling write and read of the memory such that the digital data is intermittently written in the memory at the first transfer rate and the digital data is continuously read out from the memory at a second transfer rate lower than the first transfer rate, a second decoding unit (15) for decoding the digital data read out from the memory and outputting the same as an audio signal at the second transfer rate, and a display device (19) for displaying an amount of the digital data stored in the memory so that an increase or decrease of the amount of the digital data can be visually confirmed. Further, the present invention is directed to a disc recording apparatus in which an input digital audio signal is encoded and recorded on a disc. This disc recording apparatus comprises a first encoding unit for compressing an input digital audio signal, a memory in which compressed data from the first encoding unit is temporarily stored, a second encoding unit for intermittently receiving the compressed data stored in the memory and outputting encoded data as recording data to be recorded on the disc at its predetermined position, a controller for controlling the memory such that the compressed data from the first encoding unit is continuously written in the memory and the compressed data stored in the memory is intermittently read out from the memory at every predetermined data amount, and a display device for displaying a storage amount of the compressed data stored in the memory so that an increase or decrease of the amount of the compressed data can be visually confirmed. Therefore, since the amount of data stored in the memory is displayed so that the user can recognize the operation state of the memory intuitively and readily.

Inventors

  • 👤 Isao c/o Sony Corporation Wada
  • 👤 Junichi C/O Sony Corporation Aramaki
  • 👤 Akihisa C/O Sony Corporation Inatani
  • 👤 Yoshihiro c/o Sony Corporation Kajiyama

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 18:19
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/005; G11B15/00; G11B15/18; G11B19/00; G11B19/02; G11B19/04; G11B20/00; G11B20/00007; G11B20/10; G11B27/10; G11B27/34; G11B27/36; G11B33/00; G11B33/10; G11B11/00; G11B11/10; G11B11/105; G11B11/10502; G11B11/10504; G11B11/10515; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2525; G11B2220/2537; G11B2220/2545; G11B7/00; G11B7/004; G11B7/0045; G11B7/005

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 195 words
A disc reproducing apparatus in which a signal recorded on a disc is optically read out from said disc and reproduced as an audio signal, comprising: (a) pickup means tracing a track formed on said disc to optically read out a signal recorded on said disc; (b) first decoding means for decoding an output signal of said pickup means and then outputting the same at a first transfer rate; (c) memory means in which digital data output from said first decoding means is stored temporarily; (d) control means for controlling write and read of said memory means such that said digital data is intermittently written in said memory means at said first transfer rate and said digital data is continuously read out from said memory means at a second transfer rate lower than said first transfer rate; (e) second decoding means for decoding said digital data read out from said memory means and outputting the same as an audio signal at said second transfer rate; and (f) display means for displaying an amount of said digital data stored in said memory means so that an increase or decrease of said amount can be visually confirmed.
Claim 2
Dependent Claim 65 words
The disc reproducing apparatus according to claim 1, wherein said control means includes a write pointer representative of a write address of the digital data stored in said memory means and a read pointer representative of a read address of the digital data read out from the memory means and controls said memory means on the basis of said write pointer and said read pointer.
Claim 3
Dependent Claim 59 words
The disc reproducing apparatus according to claim 2, wherein said write pointer is incremented at a speed corresponding to said first transfer rate when said digital data is written in said memory means and said read pointer is incremented at a speed corresponding to said second transfer rate when said digital data is read out from said memory means.
Claim 4
Dependent Claim 151 words
A disc recording apparatus in which an input audio signal is encoded and recorded on a disc, comprising: (A) first encoding means for compressing an input digital audio signal; (B) memory means for temporarily storing compressed data from said encoding means; (C) second encoding means for intermittently receiving the compressed data stored in said memory means and outputting encoded data as recording data to be recorded on said disc at its predetermined position; (D) control means for controlling said memory means such that said compressed data from said first encoding means is continuously written in said memory means and said compressed data stored in said memory means is intermittently read out from said memory means at every predetermined data amount; and (E) display means for displaying a storage amount of said compressed data stored in said memory means so that an increase or decrease of said amount can be visually confirmed.
Claim 5
Dependent Claim 65 words
The disc recording apparatus according to claim 4, wherein said control means includes a write pointer representative of a write address of the digital data stored in said memory means and a read pointer representative of a read address of the digital data read out from the memory means and controls said memory means on the basis of said write pointer and said read pointer.
Claim 6
Dependent Claim 82 words
The disc recording apparatus according to claim 8, wherein said write pointer is incremented at a speed corresponding to a bit rate of said compressed data when said digital data is written in said memory means and said read pointer is intermittently incremented at a speed corresponding to a speed at which said recording data is recorded on said disc when an amount of data, which is stored in said memory means and not yet read out, exceeds a predetermined data amount.
Claim 7
Dependent Claim 48 words
The disc recording or reproducing apparatus according to claim 2, 3, 5 or 6, wherein said display means displays one by one said memory means at its area extracted on the basis of said write pointer and said read pointer and in which data is not yet stored.
Claim 8
Dependent Claim 67 words
The disc recording or reproducing apparatus according to any one of claims 2, 3, 5, 6, or 7, wherein said display means comprises a fixed display element expressing a container which remembers a storage capacity of said memory means and variable display elements disposed at a position encircled by said fixed display element and expressing one by one an amount of data stored in said memory means.
Claim 9
Dependent Claim 56 words
The disc recording or reproducing apparatus according to any one of claims 2, 3, 5, 6 or 7, wherein said display means includes a plurality of variable display elements continuously aligned, said variable display elements being sequentially driven from one to the other end in response to an amount of data stored in said memory means.
Claim 10
Dependent Claim 61 words
The disc recording or reproducing apparatus according to claim 9, wherein said display means forms a level meter which is driven in response to the output level of an output audio signal and switching means for switching a drive signal supplied to said display means in response to a signal based on the amount of data stored in said memory means.

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