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  This patent was reissued on May 20, 1980 as patent USRE30278

Title: US3973839: Special effects generation and control system for motion pictures
[ Derwent Title ]

Country: US United States of America

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16 pages

Inventor: Stumpf, Richard J.; Woodland Hills, CA
Watson, Waldon O.; Universal City, CA
Leonard, Robert J.; Northridge, CA

Assignee: MCA Systems, Inc., Universal City, CA
other patents from MCA INC. (360750) (approx. 2)
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Published / Filed: 1976-08-10 / 1974-12-30

Application Number: US1974000537194

IPC Code: Advanced: A63J 25/00; G03B 29/00; G03B 31/00; G10K 15/04; G11B 5/02; G11B 20/00; H04R 1/00; H04R 1/22; H04R 3/00; H04S 1/00;
Core: A63J 99/00; more...
IPC-7: G03B 31/00;

ECLA Code: A63J25/00; G03B29/00;

U.S. Class: Current: 352/005; 352/006; 352/007; 352/010; 352/025; 352/040; 352/085; 352/092;
Original: 352/005; 352/006; 352/007; 352/010; 352/025; 352/040; 352/085; 352/092;

Field of Search: 352/003,5,6,7,8,9,10,25,40,85,92 272/014 179/1 AT,1 R 073/522,555,556,559

Priority Number:
1974-12-30  US1974000537194

Abstract:     A special effects system for simulating physical sensations in an audience during the presentation of a motion picture. Relatively high intensity, very low frequency random noise is acoustically coupled to a theater space to produce psychological and physiological sensations, much as earthquake movements, in the audience. The special effects are controlled by a control sub-channel which is either frequency multiplexed onto a conventional optical audio track or, in a magnetic stripe film format, the control sub-channel is placed on an accompanying optical track. The presence and amplitude of two control frequencies in the sub-channel are detected and logically combined, providing four separate digital function control signals and two analog control signals which are variable in amplitude.

Attorney, Agent or Firm: Fulwider, Patton, Rieber, Lee & Utecht ;

Primary / Asst. Examiners: Adams, Jr., Russell E.;

INPADOC Legal Status: None          Buy Now: Family Legal Status Report

Family: Show 20 known family members

First Claim:
Show all 29 claims
We claim:     1. A method of simulating a specified physiological and psychological sensation in an audience viewing a visual display in a theater, said method comprising the steps of:
  • generating random frequencies and transients having components in at least the infrasonic frequency range; and
  • applying, in synchronism with said visual display, said frequencies and transients to acoustic transducers located in said theater, at sufficient power levels to induce the specified sensation in the audience.

Background / Summary: Show background / summary

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Description: Show description

Forward References: Show 12 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (12)   |   Backward references (8)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 3pp US1005061  1911-10 Murie   AMUSEMENT APPARATUS.
Get PDF - 7pp US1789680  1931-01 Gwinnett   Amusement device
Get PDF - 13pp US2714633  1955-08 Fine   Perspective sound systems
Get PDF - 8pp US2768236  1956-10 Allison   Hearing test system
Get PDF - 6pp US2861806* 1958-11 Disney    
Get PDF - 4pp US3414873  1968-12 Richard et al.   FISH ATTRACTING APPARATUS
Get PDF - 8pp US3907412  1975-09 Schaller et al.  Ernst Plank KG Film projector with sound
  * some details unavailable
Foreign References: None

Other References:
  • Movies on T.V., 1972-1973 Edition, p. 373.

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