Method of and system for mobile surveillance and event recording

• US 8,487,995 B2
• Filed: 05/14/2010
• Issued: 07/16/2013
• Est. Priority Date: 10/12/2004
• Status: Active Grant

• Current Assignee: Watchguard Video Incorporated (Motorola Solutions, Inc.)
• Original Assignee: Enforcement Video Incorporated (Enforcement Technology Group Incorporated)
• Inventors: Vanman, Robert V., Goble, Simon C.
• Primary Examiner(s): DIEP, NHON THANH
• Application Number:
  US12/780,050
• Publication Number:
  US 20110125708A1
• Time in Patent Office: 1,159 Days
• Field of Search: None
• US Class Current: 348/143
• CPC Class Codes: G08G 1/054 photographing overspeeding vehicles
• CPC Class Codes: G11B 19/08 by using devices external to the driving mechanisms, e.g. coin-freed switch coin actuated mechanisms G07F5/00
• CPC Class Codes: G11B 20/00471 video content protection system [VCPS]
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/28 by using information signals recorded by the same method as the main recording G11B27/22 takes precedence
• CPC Class Codes: H04N 5/91 Television signal processing therefor
• CPC Class Codes: H05K 999/99 dummy group

Abstract

A data-encoding system includes a source of unencoded data, and a first encoder interoperably coupled to the source, wherein the first encoder is adapted to receive the unencoded data, encode the unencoded data, and output encoded data at a first data rate. The data encoding system further includes a second encoder interoperably coupled to the source, wherein the second encoder is adapted to receive the unencoded data, encode the unencoded data, and output encoded data at a second data rate in which the second data rate exceeds the first data rate. This Abstract is provided to comply with rules requiring an Abstract that allows a searcher or other reader to quickly ascertain subject matter of the technical disclosure. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

Claims

1. A data-overflow-handling method comprising:

storing at least one of captured audio data, video data, and metadata to a first directory of a non-removable data storage medium;

determining whether an event is being recorded;

responsive to a determination that an event is being recorded, storing an image of the stored at least one of captured audio data, video data, and metadata to a second directory of the non-removable data storage medium;

determining whether a predefined capacity threshold relative to a removable data storage medium has been exceeded;

responsive to a determination that the predefined capacity threshold has been exceeded, creating a third directory of the non-removable data storage medium;

determining whether data in the second directory of the non-removable storage medium has not been stored to the removable data storage medium;

responsive to a determination that data in the second directory of the non-removable storage medium has not been stored to the removable data storage medium, storing any unstored data in the second directory to the removable data storage medium;

determining whether the second directory contains finalization files;

responsive to a determination that the second directory contains finalization files, finalizing the removable storage medium and providing a prompt to insert another removable storage medium; and

responsive to a determination that the second directory contains no finalization files, returning to the step of determining whether data in the second directory of the non-removable storage medium has not been stored to the removable data storage medium.

2. The data-overflow-handling method of claim 1, further comprising, responsive to insertion of another removable data storage medium, checking for the third directory.

3. The data-overflow-handling method of claim 2, further comprising:

determining whether data in the third directory of the non-removable storage medium has not been stored to the removable data storage medium;

responsive to a determination that data in the third directory of the non-removable storage medium has not been stored to the removable data storage medium, storing any unstored data in the third directory to the new removable data storage medium;

determining whether the third directory contains finalization files;

and responsive to a determination that the third directory contains finalization files, finalizing the removable storage medium and providing a prompt to insert another removable storage medium.

4. The data-overflow-handling method of claim 1, wherein:

a hard drive comprises the non-removable data storage medium; and

the removable data storage medium is a digital video disc.

5. A data-overflow-handling computer system comprising:

a processor; and

a memory including software instructions adapted to enable the computer system to perform the steps of;

storing at least one of captured audio data, video data, and metadata to a first directory of a non-removable data storage medium;

determining whether an event is being recorded;

responsive to a determination that an event is being recorded, storing an image of the stored at least one of captured audio data, video data, and metadata to a second directory of the non-removable data storage medium;

determining whether a predefined capacity threshold relative to a removable data storage medium has been exceeded;

responsive to a determination that the predefined capacity threshold has been exceeded, creating a third directory of the non-removable data storage medium;

determining whether data in the second directory of the non-removable storage medium has not been stored to the removable data storage medium;

responsive to a determination that data in the second directory of the non-removable storage medium has not been stored to the removable data storage medium, storing any unstored data in the second directory to the removable data storage medium;

determining whether the second directory contains finalization files;

responsive to a determination that the second directory contains finalization files, finalizing the removable storage medium and providing a prompt to insert another removable storage medium; and

responsive to a determination that the second directory contains no finalization files, returning to the step of determining whether data in the second directory of the non-removable storage medium has not been stored to the removable data storage medium.

6. The computer system of claim 5, further comprising software instructions adapted to enable the computer system to perform the step of, responsive to insertion of another removable data storage medium, checking for the third directory.

7. The system of claim 6, further comprising software instructions adapted to enable the computer system to perform the steps of:

determining whether data in the third directory of the non-removable storage medium has not been stored to the removable data storage medium;

responsive to a determination that data in the third directory of the non-removable storage medium has not been stored to the removable data storage medium, storing any unstored data in the third directory to the new removable data storage medium;

determining whether the third directory contains finalization files; and

responsive to a determination that the third directory contains finalization files, finalizing the removable storage medium and providing a prompt to insert another removable storage medium.

8. The system of claim 5, wherein:

a hard drive comprises the non-removable data storage medium; and

the removable data storage medium is a digital video disc.