Pulse position modulation communications protocol
First Claim
1. A method for modulating a radio signal, the method comprising the steps of:
- a) predetermining a first time interval so as to define a data word;
b) generating a synchronization pulse, the synchronization pulse initiating a single data word having a length of the predetermined first time interval; and
c) generating a single data pulse within the data word after a second time interval with respect to the synchronization pulse, the length of the second time interval defining at least one character;
d) wherein defining at least one character by the single data pulse within the data word after the second time interval with respect to the synchronization pulse enhances an energy efficiency of the radio signal while mitigating a duty cycle thereof.
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Abstract
A method for modulating a radio signal has the steps of: predetermining a first time interval so as to define a data word; generating a synchronization pulse, the synchronization pulse initiating a single data word having a length of the predetermined first time interval; and generating a single data pulse within the data word after a second time interval with respect to the synchronization pulse, the length of the second time interval defining at least one character. Defining at least one character by a single data pulse after a second time interval with respect to the synchronization pulse enhances an energy efficiency of the transmitted radio signal while mitigating a duty cycle thereof.
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Citations
20 Claims
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1. A method for modulating a radio signal, the method comprising the steps of:
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a) predetermining a first time interval so as to define a data word; b) generating a synchronization pulse, the synchronization pulse initiating a single data word having a length of the predetermined first time interval; and c) generating a single data pulse within the data word after a second time interval with respect to the synchronization pulse, the length of the second time interval defining at least one character; d) wherein defining at least one character by the single data pulse within the data word after the second time interval with respect to the synchronization pulse enhances an energy efficiency of the radio signal while mitigating a duty cycle thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for modulating a radio signal, the method comprising the steps of:
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a) predetermining a first time interval so as to define a data word; b) generating a synchronization pulse, the synchronization pulse initiating a plurality of contiguous data words, each data word having a length of the predetermined first time interval; and c) generating a single data pulse within each data word, each data pulse being generated after a second time interval with respect to a beginning of the data word within which it is generated, the length of the second time interval defining at least one character; d) wherein so defining a plurality of characters utilizing a single synchronization pulse enhances an energy efficiency of the radio signal while mitigating a duty cycle thereof. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method for demodulating a radio signal, the method comprising the steps of:
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a) periodically monitoring an input port for the presence of a given state; b) storing a predetermined number of the monitored states; c) determining that a synchronization pulse has been received when the predetermined number of the stored states of the input port are in the given state; d) starting a clock when the synchronization pulse has been determined to have been received; e) again periodically monitoring the input port for the presence of the given state; f) again storing a predetermined number of the monitored states; g) determining that a data pulse has been received when the predetermined number of the stored states of the input port are in the given state; h) reading a time interval from the clock when it has been determined that the data pulse has been received; and i) using the length of the time interval to define a character being represented thereby. - View Dependent Claims (17, 18, 19, 20)
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Specification