Digital sound reproducing system for toy trains with stored digi

Railways – Car-carried propulsion system – Electric

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

105 27, 104DIG1, 246193, 446410, B60L 100, B60L 904

Patent

active

051742160

ABSTRACT:
A digital sound reproducing system which produces a plurality of sound effects from digital data stored at predetermined addresses in a digital sound memory. A controller connected to the digital sound memory causes recall of a sound data from a predetermined sequence of addresses when triggered. This recalled sound data is converted into an analog audio signal for reproduction by a speaker. In a first embodiment the digital sound reproducing system is disposed in the car of a model train. Magnets disposed between the tracks trigger corresponding sound effects when the digital sound reproducing system detects passage of the magnets. A speed sensor detects the rotation rate of a wheel of the car to permit sound effects to be synchronous with the rate of speed of the model train. The digital sound reproducing system may alternately be disposed in a fixed structure and triggered by a command signal or by detection of passage of the model train. In a second embodiment, a detector indicates when a space may be occupied triggering a radomized sound sequence as background noise.

REFERENCES:
patent: 30174 (1875-10-01), Schedle
patent: 1284977 (1918-11-01), Auerill
patent: 1698864 (1929-01-01), Wilckens
patent: 2882834 (1959-04-01), Smith
patent: 3581084 (1971-05-01), Kaneno et al.
patent: 3812345 (1974-05-01), Stone
patent: 3839822 (1974-10-01), Rexford
patent: 3893107 (1975-07-01), Schedler
patent: 4266368 (1981-05-01), Nyman
patent: 4293851 (1981-10-01), Beyl, Jr.
patent: 4314236 (1982-02-01), Mayer et al.
patent: 4325199 (1982-04-01), McEdwards
patent: 4524932 (1985-06-01), Bodziak
patent: 4964837 (1990-10-01), Collier
patent: 4995320 (1991-02-01), Sato et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Digital sound reproducing system for toy trains with stored digi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital sound reproducing system for toy trains with stored digi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital sound reproducing system for toy trains with stored digi will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1880583

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.