Wireless digital launch or firing system
First Claim
1. A wireless digital launch or firing system comprising:
- (a) a transmitter unit having a first transmitter element for generating a first radio-frequency (RF) signal representing a first digital code sequence, and a second transmitter element for generating a second RF signal representing a second digital code sequence which is different from that of the first RF signal;
(b) a receiver unit having;
(i) a receiver circuit for receiving the RF signals transmitted by the transmitter unit and demodulating them into respective digital code sequences;
(ii) a digital processor for receiving the demodulated digital code sequences from the receiver circuit and comparing them to stored first and second digital code sequences, said digital processor outputting an “
enable”
signal if the demodulated first digital code sequence matches the stored first digital code sequence, and an “
actuate”
signal if the demodulated second digital code sequence matches the stored second digital code sequence;
(iii) a memory latch device which maintains a normally-off primary switch in an “
on”
condition once the memory latch device receives the “
enable”
signal from the digital processor; and
(iv) a normally-off secondary switch which is set to an “
on”
condition when it receives the “
actuate”
signal from the digital processor, wherein, when both said primary and secondary switches are in the “
on”
condition, an electrical output is provided to actuate a launch or firing device.
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Accused Products
Abstract
A wireless digital launch or firing system has a transmitter unit that can transmit separate RF signals representing an “enable” code sequence and an “actuate” code sequence, and a receiver unit which decodes the “enable” code sequence to enable receipt of the “actuate” code sequence, and decodes the “actuate” code sequence to actuate launching or firing. A digital processor receives the code sequences from a receiver circuit and compares them to stored digital code sequences. A memory latch maintains a normally-off primary switch in an “on” condition when the “enable” signal is received. A normally-off secondary switch is set to an “on” condition when the “actuate” signal is received. Preferably, the RF signals are transmitted in pulse code form, and the code sequences include bits that are predetermined and stored in the hardware, bits that are selected for an individual code by the user, and bits that differentiate the “enable” from the “actuate” signal. The memory latch can be set to an indefinite “enable” period, for multiple launchings, or a timed “enable” period, for toys or single launch devices. A sequencer module can be coupled to the receiver unit for sequenced firings.
138 Citations
20 Claims
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1. A wireless digital launch or firing system comprising:
-
(a) a transmitter unit having a first transmitter element for generating a first radio-frequency (RF) signal representing a first digital code sequence, and a second transmitter element for generating a second RF signal representing a second digital code sequence which is different from that of the first RF signal;
(b) a receiver unit having;
(i) a receiver circuit for receiving the RF signals transmitted by the transmitter unit and demodulating them into respective digital code sequences;
(ii) a digital processor for receiving the demodulated digital code sequences from the receiver circuit and comparing them to stored first and second digital code sequences, said digital processor outputting an “
enable”
signal if the demodulated first digital code sequence matches the stored first digital code sequence, and an “
actuate”
signal if the demodulated second digital code sequence matches the stored second digital code sequence;
(iii) a memory latch device which maintains a normally-off primary switch in an “
on”
condition once the memory latch device receives the “
enable”
signal from the digital processor; and
(iv) a normally-off secondary switch which is set to an “
on”
condition when it receives the “
actuate”
signal from the digital processor,wherein, when both said primary and secondary switches are in the “
on”
condition, an electrical output is provided to actuate a launch or firing device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A wireless digital launch or firing device comprising:
-
(a) a receiver circuit for receiving a first radio-frequency (RF) signal representing a first digital code sequence, a second RF signal representing a second digital code sequence which is different from that of the first RF signal, and demodulating them into respective digital code sequences;
(b) a digital processor for receiving the demodulated digital code sequences from the receiver circuit and comparing them to stored first and second digital code sequences, said digital processor outputting an “
enable”
signal if the demodulated first digital code sequence matches the stored first digital code sequence, and an “
actuate”
signal if the demodulated second digital code sequence matches the stored second digital code sequence;
(c) a memory latch device which maintains a normally-off primary switch in an “
on”
condition once the memory latch device receives the “
enable”
signal from the digital processor; and
(d) a normally-off secondary switch which is set to an “
on”
condition when it receives the “
actuate”
signal from the digital processor,wherein, when both said primary and secondary switches are in the “
on”
condition, an electrical output is provided to actuate a launch or firing device. - View Dependent Claims (19)
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20. A method of wireless digital launching or firing comprising:
-
(a) receiving a first radio-frequency (RF) signal representing a first digital code sequence, a second RF signal representing a second digital code sequence which is different from that of the first RF signal, and demodulating them into respective digital code sequences;
(b) receiving the demodulated digital code sequences and comparing them to stored first and second digital code sequences, and outputting an “
enable”
signal if the demodulated first digital code sequence matches the stored first digital code sequence, and an “
actuate”
signal if the demodulated second digital code sequence matches the stored second digital code sequence;
(c) maintaining a normally-off primary switch in an “
on”
condition once the “
enable”
signal is output; and
(d) setting a normally-off secondary switch to an “
on”
condition when the “
actuate”
signal is output,(e) providing an electrical output to actuate a launch or firing device when both said primary and secondary switches are in the “
on”
condition.
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Specification