Transmission of event markers to data stream recorder

• US 7,685,428 B2
• Filed: 08/14/2003
• Issued: 03/23/2010
• Est. Priority Date: 08/14/2003
• Status: Active Grant

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: Piersol, Kurt
• Primary Examiner(s): Davis; Zachary A
• Application Number:
  US10/641,456
• Publication Number:
  US 20050038794A1
• Time in Patent Office: 2,413 Days
• Field of Search: 380/218, 713176-179, 713/181, 707/100, 705/59, 386/57, 386/95
• US Class Current: 713/178
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: H04N 21/8455 involving pointers to the content, e.g. pointers to the I-frames of the video stream

Abstract

An information stream (media stream) can be “bookmarked” with event markers to note points in time in the information stream of occurrences of interesting events. Repeat occurrences of an event are noted with the same event marker. The events of interest need not be a priori determined. In fact, unexpected events can be readily noted.

Claims

1. A method comprising:

generating, by a multi-function peripheral, a set of event identifiers;

subsequent to generating the set of event identifiers, receiving, by the multi-function peripheral, an information stream being recorded by a recording device communicatively coupled with the multi-function peripheral;

while the information stream is being recorded by the recording device;

receiving, by the multi-function peripheral, a first instance of a first event identifier in the set of event identifiers, the receiving of the first instance indicating that a user has selected the first event identifier at a first time during recording of the information stream;

incorporating, by the multi-function peripheral, the first instance of the first event identifier into the information stream at a location in the information stream corresponding to the first time;

receiving, by the multi-function peripheral, a second instance of the first event identifier, the receiving of the second instance indicating that a user has selected the first event identifier at a second time during recording of the information stream;

incorporating, by the multi-function peripheral, the second instance of the first event identifier into the information stream at a location in the information stream corresponding to the second time; and

storing, by the multi-function peripheral, the information stream.

2. The method of claim 1 wherein the steps of receiving the first and second instances of the first event identifier include receiving transmitted signals representative of the first event identifier.

3. The method of claim 2 wherein the set of event identifiers comprises a printed sheet of barcode indicia generated by the multi-function peripheral, and wherein the transmitted signals are signals produced by scanning a barcode scanner over one or more of the barcode indicia.

4. The method of claim 1 wherein the set of event identifiers is graphically presented on a video display.

5. The method of claim 1 wherein each of the first and second instances of the first event identifier includes a respective encrypted component, the encrypted component of the first instance being produced at the first time and the encrypted component of the second instance being produced at the second time.

6. The method of claim 5 further comprising employing an asymmetric encryption technique to produce at least one of the encrypted components.

7. The method of claim 5 further comprising employing a symmetric encryption technique to produce at least one of the encrypted components.

8. The method of claim 5 wherein the steps of incorporating the first and second instances include encrypting the first and second instances using an asymmetric encryption technique.

9. The method of claim 5 wherein the steps of incorporating the first and second instances include encrypting the first and second instances using a symmetric encryption technique.

10. The method of claim 1 wherein the first and second instances include metadata, and wherein the steps of incorporating include associating the metadata with the information stream.

11. The method of claim 1 wherein the first instance is received in response to a selection of the first event identifier by a first user, and wherein the second instance is received in response to a selection of the first event identifier by a second user.

12. A multi-function peripheral comprising:

a data processor operable to perform the steps of;

generating a set of event identifiers;

subsequent to generating the set of event identifiers, receiving, an information stream being recorded by a recording device communicatively coupled with the multi-function peripheral;

while the information stream is being recorded by the recording device;

receiving a first instance of a first event identifier in the set of event identifiers, the receiving of the first instance indicating that a user has selected the first event identifier at a first time during recording of the information stream;

incorporating the first instance of the first event identifier into the information stream at a location in the information stream corresponding to the first time;

receiving a second instance of the first event identifier, the receiving of the second instance indicating that a user has selected the first event identifier at a second time during recording of the information stream;

incorporating the second instance of the first event identifier into the information stream at a location in the information stream corresponding to the second time; and

storing the information stream.

13. The multi-function peripheral of claim 12 wherein the first and second instances are representative of scanned barcodes.

14. The multi-function peripheral of claim 12 wherein the first and second instances include additional information pertaining to the selections of the first event identifier at the first and second times, the additional information being incorporated into the information stream.

15. The multi-function peripheral of claim 14 wherein the additional information comprises one or more of a first device identifier that identifies a device with which the first event identifier was selected, biometric information representative of a user, and a second device identifier that identifies the recording device.

16. The multi-function peripheral of claim 14 wherein the additional information includes a device identifier that identifies the recording device, and wherein the data processor is further operable to incorporate only information including device identifiers that match the recording device.

17. The multi-function peripheral of claim 12 wherein the data processor is further operable to encrypt the first and second instances.

18. The multi-function peripheral of claim 17 wherein the first and second instances are encrypted using one of an asymmetric encryption technique and a symmetric encryption technique.

19. The multi-function peripheral of claim 18 wherein the first and second instances each comprise a respective encrypted component.

20. The multi-function peripheral of claim 19 wherein each respective encrypted component is encrypted with an encryption key that is associated with a device used to select the identifier.

21. The multi-function peripheral of claim 12 wherein the information stream comprises one of a multimedia data stream, an analog stream, a plurality of image frames, and a stream of sensor data.