Location signalling device for automatically placing a radio distress call
First Claim
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1. A location signalling device for use in combination with a coordinate location data generating unit and a radio transmitter having a transmitter input, comprising:
- a device input/output port for communicating with the coordinate location data generating unit and entering location data provided from the coordinate location data generating unit into the location signalling device;
a memory for storing the entered coordinate location data;
a timer/clock having periodic time setting means for setting predetermined periodic time intervals for entering coordinate location data;
a device controller coupled to said device input/output port, said timer/clock, and said memory, including a microprocessor having programmed location data updating means for automatically communicating with the coordinate location at a generating unit to provide current coordinate location data at the predetermined periodic time intervals set by said timer/clock and storing current location data entries in said memory in order as to time of entry;
a device output including an output terminal connected to the transmitter input of the radio transmitter for automatically retrieving a most current entry of the location data stored in memory and sending said most current location data to the input of the radio transmitter in response to a distress activation signal; and
activation means for providing the activation signal to said device output means in response to an actuating action by a user when a distress call is to be sent.
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Abstract
A location signalling device sends a radio distress call giving the precise location coordinates of a person in distress automatically once it is activated without the need for anyone to operate an associated radio transmitter. The device includes a microprocessor controller, a digital location data input, a keyboard, a voice input, an LCD display, a clock/timer, a digital memory, and a voice synthesizer output which provides the distress call in audio voice signals to the microphone input of the radio transmitter when an activating switch is pressed.
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Citations
12 Claims
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1. A location signalling device for use in combination with a coordinate location data generating unit and a radio transmitter having a transmitter input, comprising:
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a device input/output port for communicating with the coordinate location data generating unit and entering location data provided from the coordinate location data generating unit into the location signalling device; a memory for storing the entered coordinate location data; a timer/clock having periodic time setting means for setting predetermined periodic time intervals for entering coordinate location data; a device controller coupled to said device input/output port, said timer/clock, and said memory, including a microprocessor having programmed location data updating means for automatically communicating with the coordinate location at a generating unit to provide current coordinate location data at the predetermined periodic time intervals set by said timer/clock and storing current location data entries in said memory in order as to time of entry; a device output including an output terminal connected to the transmitter input of the radio transmitter for automatically retrieving a most current entry of the location data stored in memory and sending said most current location data to the input of the radio transmitter in response to a distress activation signal; and activation means for providing the activation signal to said device output means in response to an actuating action by a user when a distress call is to be sent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification