Resources Contact Us Home
Browse by Category: Main > Business
Class Information
Number: 434/315
Name: Education and demonstration > Audio recording and visual means > Image projector > With code on image carrier for controlling operation of apparatus
Description: Subject matter wherein the visual information carrier carries a code (e.g., light or opaque area, notch, aperture, etc.) to control the operation of the devices.

Patents under this class:

Patent Number Title Of Patent Date Issued
7261612 Methods and systems for read-aloud books Aug. 28, 2007
6011949 Study support system Jan. 4, 2000
5899700 Embedded multimedia control code method and apparatus May. 4, 1999
5710834 Method and apparatus responsive to a code signal conveyed through a graphic image Jan. 20, 1998
5164865 System and method for locating information on a continuous image medium Nov. 17, 1992
4994987 Image access system providing easier access to images Feb. 19, 1991
4677604 Method for controlling access to recorded data Jun. 30, 1987
4552535 Mechanical assembly for audio-visual teaching machines Nov. 12, 1985
4005530 Audio-visual training device with selective branching Feb. 1, 1977
3968575 Teaching device Jul. 13, 1976

  Recently Added Patents
Charged particle source with integrated electrostatic energy filter
Method for manufacturing light emitting diodes
Transferring a document
Thin film switch and press key/keyboard using the same
DC/DC converter, power supply circuit, and semiconductor device
Markers of acute myeloid leukemia stem cells
Micro positioning test socket and methods for active precision alignment and co-planarity feedback
  Randomly Featured Patents
System and method for clearing depth and color buffers in a real-time graphics rendering system
Computer model of security risks
Bicycle carrier
System for printed circuit board defect detection
Scrolling browser with previewing area
Flush mount electrical plate and method for installing same
Model-based process for translating test programs
Metal-air battery with programmed-timing activation
Method for installing an application program, to be executed during each bootload of a computer system for presenting a user with content options prior to conventional system startup presentat
Process and circuit arrangement for transmitting received signals from an antenna to a base station of a radio system