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Simulcast of interactive signals with a conventional video signal    
United States Patent5585858   
Link to this pagehttp://www.wikipatents.com/5585858.html
Inventor(s)Harper; Gregory W. (New York, NY); Freeman; Michael J. (New York, NY)
AbstractA system for simulcasting a fully interactive program with a normal conventional program in the same standard video signal bandwidth. It allows active participation by subscribers who have interactive components connected to a television or personal computer display, as well as normal viewing of the conventional program by viewers with conventional television sets. Interactive participants are not limited to any particular reception system. Users can participate using an interactive program box connected to a standard television set or with a multimedia personal computer with an interactive board. An important feature is that interactivity is offered as an option, without any degradation or interruption in program content to users who choose not to interact or do not have the interactive components. Interactivity is personalized through the use of alternative audio responses and/or graphic displays. The interactive elements are presented to the subscriber either immediately after subscriber entry, later during the program at predetermined times, and/or at transparent "trigger points". At trigger points, program content is subtly altered to present specialized attention to each interactive subscriber viewing the displayed programming. Interactive programs viewable over the simulcast system include both live broadcasts as well as recorded programs. Interactive audio and graphics elements can be provided as part of the transmitted video signal bandwidth using efficient one way techniques or from local or external storage. The interactive innovative features are not limited to conventional cable or television broadcast or any particular transmission means or transmission format, and can be analog or digital.
   














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Drawing from US Patent 5585858
Simulcast of interactive signals with a conventional video signal - US Patent 5585858 Drawing
Simulcast of interactive signals with a conventional video signal
Inventor     Harper; Gregory W. (New York, NY); Freeman; Michael J. (New York, NY)
Owner/Assignee     ACTV, Inc. (New York, NY)
Patent assignment
All assignments
Publication Date     December 17, 1996
Application Number     08/289,499
PAIR File History     Application Data   Transaction History
Image File Wrapper   Patent Term   Fees
Litigation
Filing Date     August 12, 1994
US Classification     348/485 348/473 725/32 725/34 725/136 725/138 725/139 725/142
Int'l Classification     H04N 007/087 H04N 007/08 H04N 007/12 H04N 007/14
Examiner     Metjahic; Safet
Assistant Examiner    
Attorney/Law Firm     Dorsey & Whitney LLP
Address
Parent Case     RELATED APPLICATIONS This is a continuation-in-part of application Ser. No. 08/798,355, filed Apr. 15, 1994, entitled "A DISTANCE LEARNING SYSTEM PROVIDING INDIVIDUAL TELEVISION PARTICIPATION, AUDIO RESPONSES, AND MEMORY FOR EVERY STUDENT." The interactive television program is of a type disclosed in commonly copending U.S. patent application Ser. No. 07/797,298, filed Nov. 25, 1991, and in U.S. Pat. Nos. 4,847,700, 4,507,680, 4,573,072, 4,602,279, 4,264,925, and 4,264,924, the contents of which are herein incorporated by reference.
Priority Data    
USPTO Field of Search     348/473 348/474 348/475 348/476 348/477 348/478 348/479 348/480 348/481 348/482 348/483 348/484 348/485 348/486 348/460 348/461 348/462 348/465 348/468 348/552 348/563 348/564 348/569 348/589 348/600 348/578 348/13 348/12 348/10 348/6 348/16 348/121 348/9 395/155 395/161 395/153 395/154 455/5.1 434/307 R 434/323 434/335 434/350
Patent Tags     simulcast interactive signals conventional video signal
   
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