Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate
1997-10-10
2001-08-28
Tran, Thai (Department: 2715)
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
C386S349000, C358S909100, C348S236000
Reexamination Certificate
active
06282362
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a method and system for capturing, storing and retrieving digital image data and one or more multi-media digital data entities by means related to the geographical location at which the images were captured. More particularly the invention has embodiments which include hyper-links between the recorded image data and stored digital multi-media data entities in which at least a portion of the entities are stored in a compressed Portable Document Format (PDF). Encryption of the digital data as recorded may also be performed using the geographical position data as at least part of an encryption/decryption key to provide secure authentication of recorded data to a second party.
2. Previous Art
Many applications of image or picture recording associated with the recording location are known. Tsuchiya, U.S. Pat. No. 5,267,042 shows a image pickup device body having a position detection means to record the device body position and an object image at the same time onto the image recording medium. Tsuchiya discloses a recording medium as photosensitive film or a magnetic video tape recorder. Location data is captured on the same film or video image as geographical coordinates, or alternately is captured on an sequential or parallel associated image. Means are provided for converting the digital coordinate data to an appropriate image for recording on film or with the video signal. It would be an advantage to eliminate the conversion step from digital coordinate data to an image of the coordinates.
Tsuchiya also discloses generating signals from an azimuth sensor and subsequently carrying out A/D conversion of the azimuth sensor signals. The converted azimuth sensor signals are coupled to a photosensitive unit which records the azimuth along with the image on the photosensitive film. It would be an advantage to directly store the image and coordinate data in a digital format, thereby eliminating extra conversion steps.
In Honda, U.S. Pat. No. 5,296,884, there is disclosed a data recording camera which automatically records an object image along with data relating to place at every photo operation. Place names and other data related to place are recorded along with image data, at the time of recording the image, on an IC card, magnetic disk or optical disk by means of a location determining device, such as a GPS receiver.
The camera operator selects one or more place data from a predetermined place data list or storage device incorporated in the camera. The operator selects the desired place data by means of a plurality of switches. The selected place data, such as a place name, eg Los Angeles, is recorded along with the object image. The place data is either imposed on the image data or is included as another display element. The additional display element may include the place data as letter images or codes.
It would be an advantage to automatically select the place data as a function of the camera location, thereby saving the operator time and effort of multiple switch manipulations.
Honda also discloses searching of images based on recorded place data, by reproducing the recorded place data and/or date and time data and searching for a comparison with a predetermined criteria. When a match is found, the selected image, corresponding to the selected place and/or time and date data, is reproduced and displayed. It would be more convenient to minimize the delay caused by reproducing and searching and comparing a long sequence of place or date/time images, in order to select one or more recorded object images.
Gunthorpe, et al, in patent application PCT/AU92/00667, disclose a portable distance calculator method and apparatus. The distance calculator apparatus and method provides for locating and displaying a map of a golf course with the relative location and distance of a golf ball at successive locations from a subject pin or dog leg on the course. The claimed apparatus displays a map indicating the location of the golf ball and the distance to the pin or dog leg during the successive shots.
No showing is made of simultaneously recording and storing object images associated with the location of the golf ball or the player carrying the apparatus.
U.S. patent application Ser. No. 08/191,815 by Janky, et al, incorporated herein by reference, discloses a remote target locator apparatus which incorporates GPS map and target location and display capability. A potential target is illuminated by a thin beam of directed energy and viewed through an imaging device. The returned energy scattered from the target is received and processed to determine a distance value between the locator apparatus and the target.
A GPS antenna array on the locator is used to provide the attitude (ie slope, azimuth) of the pointing beam. A computation means, such as a miniturized single board computer, calculates the location of the remote target relative to the computed and known location and attitude of the locator apparatus. The target image and location coordinates are then transmitted to a selected remote receiver for bringing fire to bear on the target.
No image storage or processing other than transmission is contemplated or discussed in Janky. Also, no provision is made for relating target images to associated map features by geographic location coordinates. It would be advantageous to relate the acquired target to nearby features such as the proximity to sensitive structures or personnel which may be endangered by attack.
U.S. patent application Ser. No. 08/440,246 by Woo, “A satellite Navigation receiver with Map Graphics and Hypertext Driven by a PDF Database”, incorporated herein by reference, discloses the use of specially compressed Portable Document Format (PDF) database files to store map graphic data with hypertext links between the location of a self contained navigation receiver, other points of interest and other stored data items such as text, graphics and images. The PDF format is described in
Portable Document Format Reference Manual,
Adobe Systems, Inc., 1993, Addison-Wesley Publishing Company, ISBN 0-21-62628-4. The PDF format permits great detail and high resolution map images and other multi-media entities to be stored with great efficiency. The PDF format enables compact storage, representation and display of graphical map data which is important for portable and hand held equipment in that it minimizes size, power and expense of memory required for storing and displaying graphical map images.
PDF files allow the use of computer files that are independnt of the appliation software and operating system to create it. Therefore, PDF files can be readily converted to and from “POSTSCRIPT”™ and Apple Computer “QUICK-DRAW”™ file types. Each PDF file contains a PDF document and other supporting data. Each PDF document has one or more pages which may contain text, graphics and images in a device and resulution independent format. A PDF document may also contain purely electronic representations such as hyper text links. Each PDF file further contains the version of the PDF specification used in the file and information about the important structures in the file.
A commercial product called “PDF Writer”™ and computers running both the Apple MACINTOSH™ and computers running Microsoft “WINDOWS”™ (e.g., GDI) that acts as a printer driver for POSTSCRIPT™ and GDI application programs. A printer driver ordinarily converts operating system graphics and text commands into commands that will be understood by a particular attached printer. Such drivers enbed commands into printer command streams for page printing. The PDF WRITER™ sends such command streams after emvdedding to a PDF file instead. The resulting PDF files are platform independendt, e.g., they may be freely exchanged between MACINTOSH™ and WINDOWS™ computers. PDF files are seven-bit ASCII and may be accessed by PDF viewing applications on any platform, e.g., Adobe ACROBAT EXCHANGE™ running on the MACINTOSH™. The imaging model of the POSTCRIPT™ language is used by PD
Murphy Michael
Nichols Mark
Schipper John
Woo Arthur N.
Blakely & Sokoloff, Taylor & Zafman
Tran Thai
Trimble Navigation Limited
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