Information recording apparatus

• US 20050162717A1
• Filed: 01/21/2005
• Published: 07/28/2005
• Est. Priority Date: 01/22/2004
• Status: Abandoned Application

• Current Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: Hashimoto, Seiji, Fujiyama, Michihiro
• Application Number:
  US11/038,414
• Publication Number:
  US 20050162717A1
• Time in Patent Office: Days
• US Class Current: 358/518
• CPC Class Codes: G11B 20/10 Digital recording or reproducing
• CPC Class Codes: H04N 5/76 Television signal recording
• CPC Class Codes: H04N 5/781 on disks or drums

Abstract

An information recording. apparatus comprises pre-recording processing means for circularly recording input images in a nonvolatile memory within a range of areas where a predetermined number of images previously determined can be recorded at the time of the pre-recording processing mode, post-recording processing means for recording input images in order in areas succeeding the area, used for the pre-recording processing in the pre-recording processing mode immediately before the post-recording processing mode, in the nonvolatile memory at the time of the post-recording processing mode, and power restoring processing means for starting, when the power is restored after it is shut off while the pre-recording processing is being performed, post-recording processing in the area succeeding the area used in the pre-recording processing at the time when the power is shut off.

Claims

1. In an information recording apparatus in which a recording processing mode includes a pre-recording processing mode and a post-recording processing mode, the pre-recording processing mode being always set as the recording processing mode, and the recording processing mode being set to the post-recording processing mode during a required time period on the basis of a post-recording instruction input,

an information recording apparatus comprising:

pre-recording processing means for circularly recording input images in a nonvolatile memory within a range of areas where a predetermined number of images previously determined can be recorded at the. time of the pre-recording processing mode;

post-recording processing means for recording input images in order in areas succeeding the area, used for the pre-recording processing in the pre-recording processing mode immediately before the post-recording processing mode, in the nonvolatile memory at the time of the post-recording processing mode; and

power restoring processing means for starting, when the power is restored after it is shut off while the pre-recording processing is being performed, post-recording processing in the area succeeding the area used in the pre-recording processing at the time when the power is shut off.

2. The information recording apparatus according to claim 1, wherein

for each of the images in the nonvolatile memory, a recording number representing the time-series order of the image, first control data for determining whether the image is an image inputted at the time of the pre-recording processing mode or an image inputted at the time of the post-recording processing mode, and second control data for indicating, when the image is recorded in the second or subsequent cycle in the area used for the pre-recording processing at the time of the pre-recording processing mode, the area succeeding the area used for the pre-recording processing are recorded as added data, and

the power restoring processing means comprises

first means for reading out image information and added information from the head of the nonvolatile memory,

second means for determining whether or not there exists image information to be read out,

third means for starting the post-recording processing, when there exists no image information to be read out, at the position where there has existed no image information to be read out,

fourth means for determining, when there exists image information to be read out, whether the image read out this time is recorded before the image read out last time is recorded on the basis of a recording number corresponding to the image read out last time and a recording number corresponding to the image read out this time,

fifth means for reading out, when the image read out this time is not recorded before the image read out last time is recorded, the subsequent image, to perform processing in the second means and the subsequent means,

sixth means for determining, when the image read out this time is recorded before the image read out last time is recorded, whether the image read out last time is the image inputted at the time of the pre-recording processing mode on the basis of the first control data corresponding to the image read out last time,

seventh means for starting, when the image read out last time is not the image inputted at the time of the pre-recording processing mode, the post-recording processing at the position where the image is read out this time, and

eighth means for reading out, when the image read out last time is the image inputted at the time of the pre-recording processing mode, the image from the area succeeding the area, used for the pre-recording processing, including the image read out last time on the basis of the second control data corresponding to the image read out last time, to perform processing in the second means and the subsequent means.