Circuit and method for automatically sweeping through a pluralit

Details Circuit and method for automatically sweeping through a pluralit Circuit and method for automatically sweeping through a pluralit

1988-09-15

1990-12-25

Lall, Parshotam S.

Boots, shoes, and leggings

116147, 340384E, 340384R, G10K 700

Patent

active

049808370

ABSTRACT:
A distinguishable siren sound pattern is produced within an emergency vehicle by automatically alternating the siren sound pattern from among a plurality of distinguishable types of separate siren sound patterns. One of said plurality of distinguishable type of sound patterns may be continuously generated or alternatively through momentary contact in a horn switch, automatically swept among a plurality of the distinguishable siren sound patterns according to a predetermined pattern. In the illustrated embodiment wail, yelp, high-low or hetro siren sound patterns are producible either through microprocessor control or through discretely switched waveform generators. The siren sound pattern is automatically alternated between wail and yelp or between high-low and hetro according to manually switch configurations and momentary activation of a horn ring switch. Repeated activation of the horn ring switch toggles the circuit between a selected continuous siren sound pattern such as a continuous wail or high-low and between an alternating sound pattern as is described.

REFERENCES:
patent: 3868684 (1975-02-01), Nunn, Jr.
patent: 4040050 (1977-08-01), Nunn, Jr.
patent: 4054869 (1977-10-01), Smith et al.
Marston et al., "Multi-Option Siren"; ETI, vol. 10; Jan. 1981, pp. 22-24.

Affiliated with

Also associated with

Rating

Circuit and method for automatically sweeping through a pluralit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit and method for automatically sweeping through a pluralit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit and method for automatically sweeping through a pluralit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1168221