Frequency offset differential pulse position modulation
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Accused Products
Abstract
The present invention provides such a need by utilizing a frequency offset differential pulse position modulation scheme to transmit data between computing devices within a wireless network system. The differential pulse position modulation component of the scheme enables the present invention to provide relative immunity to interference for the system. In particular, such immunity from interference is achieved by utilizing a blanking time between pulse positions, which is large enough to allow the interference between frequency offset—differential pulse position modulation pulses to subside. The frequency offset component of the scheme enables the system to utilize multiple frequency channels to enable the system to achieve higher data rates. In particular, by utilizing a time offset between the frequency channels, the blanking time can be reduced, thereby increasing the amount of data that can be transmitted with a set period of time.
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Citations
18 Claims
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1. (canceled)
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2. A method comprising:
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encoding a first portion of data at least in part into a time difference between a start time of a first pulse position modulation signal and an end time of said first pulse position modulation signal; and
encoding said first portion of data at least in part into a frequency difference between a start frequency of said first pulse position modulation signal and an end frequency of said first pulse position modulation signal. - View Dependent Claims (3, 4, 5, 6)
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7. An apparatus comprising:
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an encoder operable to encode a first portion of data at least in part into a time difference between a start time of a first pulse position modulation signal and an end time of said first pulse position modulation signal; and
wherein said encoder is further operable to encode said first portion of data at least in part into a frequency difference between a start frequency of said first pulse position modulation signal and an end frequency of said first pulse position modulation signal. - View Dependent Claims (8, 9, 10)
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11. An article comprising:
- a computer readable medium having instructions stored thereon which if executed result in;
encoding a first portion of data at least in part into a time difference between a start time of a first pulse position modulation signal and an end time of said first pulse position modulation signal; and
encoding said first portion of data at least in part into a frequency difference between a start frequency of said first pulse position modulation signal and an end frequency of said first pulse position modulation signal. - View Dependent Claims (12, 13, 14, 15)
- a computer readable medium having instructions stored thereon which if executed result in;
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16. A system comprising:
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an encoder operable to encode a first portion of data at least in part into a time difference between a start time of a first pulse position modulation signal and an end time of said first pulse position modulation signal;
wherein said encoder is further operable to encode said first portion of data at least in part into a frequency difference between a start frequency of said first pulse position modulation signal and an end frequency of said first pulse position modulation signal; and
at least one computing device operable to communicate with said encoder, wherein said at least one computing device is further operable to, at least in part, provide said first portion of data to said encoder. - View Dependent Claims (17, 18)
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Specification