Microprocessor programmable digital remote radio photographic control
DCFirst Claim
1. A multifunction programmable remote control system for photographic devices wherein the system comprisesa programmable transmitter comprising a first microprocessor electrically connected to a radio transmitter and a first power source for sending digitally encoded signals;
- a programming means for digitally encoding the radio signals;
at least one signal receiving means wherein the signal receiving means comprises a programmable receiver comprising a radio receiver electronically connected to a second microprocessor and a second power source for receiving the digitally encoded signals remotely from the radio transmitter;
at least one output control from each receiving means to at least one photographic device.
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Abstract
A radio transmitter and radio receivers are each connected to microprocessors with non-volatile memories. Binary encoded sequenced pulses are transmitted from the transmitter to program the receivers remotely. A variety of precisely coded signals can be transmitted including a unique transmitter number, a receiver number, data for the receiver, commands for the receiver, and an error detection command. Heterodyne receiver systems with local oscillators, level detectors and noise controllers mix a transmitted 344.035 MHZ signal with a local 333.335 MHZ signal to generate an intermediate frequency of 10.7 MHZ to which the filters are tuned. Over 100 dB of gain is available in the receiver amplifiers making it very sensitive. Single activation, multiple activation, sequencing, and delays are all programmable with a number of receivers. Applications include activating photographic equipment such as remote lighting, additional cameras, light positioning devices, testing devices, and other photographic applications requiring remote programmable control ranging over 1000 feet with high accuracy and coded security.
60 Citations
20 Claims
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1. A multifunction programmable remote control system for photographic devices wherein the system comprises
a programmable transmitter comprising a first microprocessor electrically connected to a radio transmitter and a first power source for sending digitally encoded signals; -
a programming means for digitally encoding the radio signals; at least one signal receiving means wherein the signal receiving means comprises a programmable receiver comprising a radio receiver electronically connected to a second microprocessor and a second power source for receiving the digitally encoded signals remotely from the radio transmitter; at least one output control from each receiving means to at least one photographic device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A multifunction programmable transmitter for a remote control system for photographic devices wherein the programmable transmitter comprises
a microprocessor electrically connected to a non-volatile memory, a radio transmitter, and a power source for sending digitally encoded signals, wherein the digitally encoded signals comprise a constant frequency radio signal which is pulsed according to a programmed series of pulses (transmissions) and non-pulses (non-transmissions) in equal time segments, wherein each equal time segment comprises a bit, and eight bits constitute one byte of information in binary code; a keyboard and LCD display programming means for digitally encoding the radio signals.
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20. A multifunction programmable receiver for a remote control system for photographic devices wherein the programmable receiver comprises
a radio receiver with a superheterodyne chip, a local oscillator, a level detector and noise control connected electrically to a microprocessor with a non-volatile memory and a power source for receiving digitally encoded signals remotely from a radio transmitter, wherein the microprocessor is programmable remotely and wherein the programmable receiver processes digitally encoded signals comprising a constant frequency radio signal which is pulsed according to a programmed series of pulses (transmissions) and non-pulses (non-transmissions) in equal time segments, wherein each equal time segment comprises a bit, and eight bits constitute one byte of information in binary code; at least one output control from the programmable receiver to at least one photographic device, wherein the output control is regulated by the digitally encoded signals.
Specification