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Ultrasonic television remote control system
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1. An ultrasonic remote control system comprising: (a) ...
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Satellite-based messaging system transmitting during guard band of satellite-based telephone system and method of operation thereof
What is claimed is: 1. In a system comprising a plurality of addressable call receivers, a plurality of mobile transceivers, said receivers and mobile transceivers being ...
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Circuit for indicating the battery voltage and operation of a radio transmitter
What we claim as new and desire to secure by Letters Patent of the United States is: 1. A circuit for indicating the operation of a radio transmitter and the voltage of ...
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Illuminated changeable-display sign
OF PREFERRED EMBODIMENT Referring to the drawing in detail, the numeral 20 generally denotes a sign in which the principles and teachings of the present invention are ...
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Soundwriting--A phonetic script with keyboard
I claim: 1. A font of characters as shown in FIG. 5. 2. The invention according to claim 1 in which each said character shown in FIGS. 1-A and 1-B has the corresponding ...
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Apparatus for identifying and tracking a targeted nuclear source
The present invention is apparatus for identifying and tracking a targeted nuclear source usually in a manufacturing or storage facility. It is a highly sophisticated ...
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Osmotic device for delayed delivery of agent
The present invention is directed to a fluid-imbibing dispensing device for the initially delayed delivery of an active agent to a fluid environment of use. The ...
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Radio controlled model aircraft control system
The above and other beneficial objects and advantages are attained in accordance with the present invention by providing a safety circuit to screen transmissions to a ...
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Frequency management system
OF THE EMBODIMENT Before going into a detailed description of the figures a brief overview will be given describing the environment and general features of the system. T...
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Method of compensating the dependence of the useful transmitter signal on the transfer function of a combiner filter
An object of the present invention is to provide a method of compensating the dependence of the useful transmitter signal on the transfer function of a combiner filter ...
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