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Patent No. 5979328

Vehicular Impact Signaling Device

An apparatus for the deployment of a visible plume to alert other motorists that a proximate motor vehicle has been involved in a collision.

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Class 332/111 - Including electron discharge device


Subclass of Class 332 - Modulators
Definition: Subject matter utilizing a device which has electrical current
No. of patents: 6
Last issue date: 05/29/2007


NumberTitleIssue Date
7224727Apparatus and method for encoding signals
The present invention provides an apparatus and method for encoding and/or decoding signals. The encoding apparatus includes a variable impedance being coupled with an encoder. The variable impedance establishes a select voltage at the encoder. The encoder is furthe...
05/29/2007
6583678Electrical circuit and method for pulse modulation of a carrier signal
The invention concerns an electric circuit and a method for pulse modulation of a carrier signal (10). The circuit comprises a pulse generator for generating a current pulse and at least one diode switch (12) which can be controlled by the current pulse. ...
06/24/2003
5739711Regulation circuit for bipolar voltage switching circuits having logic circuitry using a single error amplifier for regulation of both positive and negative voltages
A circuit suitable for use in a regulated bi-directional output power supply requiring controlled transitions between states, such as in a Battery Polarity Switch is provided to utilize many of the same circuit components in regulating both opposing polar...
04/14/1998
4720683Circuit for preventing retarding field oscillations in electron tubes, especially for a pulse-width modulation stage in transmitters
A circuit for preventing retarding field oscillations in electron switching tubes, includes a feeding diode connected to the plate of the switching tube, and a power supply for generating the retarding field voltage, the power supply being connected in pa...
01/19/1988
4272737Pulse width modulator for amplitude modulation circuit
A pulse width modulation circuit which uses a tube, such as a tetrode tube as the switching element, is arranged to minimise excessive power dissipation in the screen electrode circuit of the tube. The screen electrode is driven from a constant current so...
06/09/1981
4250469Filter for converting pulse width modulation to amplitude modulation
In a high efficiency amplitude modulation circuit. A pulse width modulation switch is arranged with a low pass filter to attentuate switching frequencies of the switch. A diode is connected in parallel with the input terminals of the low pass filter which...
02/10/1981
 
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