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US 6,285,666 B1Granted
Spread-spectrum communication method and apparatus
AssigneeCanon Kabushiki Kaisha
InventorRie Suzuki
Life of this patent
Estimating the term…
Abstract
The communication period of spread spectrum data is divided into a plurality of portions, and an adjustment period for receiving the spread spectrum data is provided between one data-communication period and another communication period. Thereby, the setting of a receiving end is adjusted in the adjustment period after the spread spectrum data is received in one data-communication period.
Claims38
A spread spectrum communication method comprising the steps of:
- dividing a communication period for a spread spectrum signal into a plurality of data-communication periods;
- providing an adjusting period between one data-communication period and another data-communication period, such that the spread spectrum signal is continuously communicated by communicating an adjustment signal for adjusting reception of the spread spectrum signal during the adjustment period;
- holding an adjusted setting of a receiving end in the data-communication period;
- communicating code-division-multiplexed data in the data-communication period;
- and
- communicating the adjustment signal not multiplexed by code division multiplexing, in the adjustment period.
3 more elements
A spread spectrum communication apparatus comprising:
- communication means for communicating a spread spectrum signal divided into a plurality of data-communication periods;
- adjustment-signal communication means for continuously communicating an adjustment signal for adjusting reception of the spread spectrum signal between one data-communication period and another communication period, such that the spread spectrum signal is continuously communicated;
- holding means for holding an adjusted setting of a receiving end in the data-communication period;
- wherein said data communication means communicates code-division-multiplexed data in the data-communication period and wherein said adjustment signal communication means communicates an adjustment signal not multiplexed by code division multiplexing.
1 more element
A spread spectrum communication method comprising the steps of:
- dividing a communication period for spread spectrum data into a plurality of communication periods;
- communicating code-division-multiplexed data in the plurality of data-communication periods;
- and
- communicating a signal not multiplexed by code division multiplexing in an adjustment period for receiving the spread spectrum data between one data-communication period and another data-communication period.
1 more element
A spread spectrum communication apparatus comprising:
- data communication means for communicating code-division multiplexed data in a plurality of divided data-communication periods;
- and
- adjustment-signal communication means for communicating an adjustment signal for adjusting reception of spread spectrum data between one data-communication period and another communication period,
- wherein the adjusting signal is not multiplexed by code-division multiplexing.
1 more element
A spread spectrum communication method comprising the steps of:
- dividing a communication period for spread spectrum data into a plurality of communication periods;
- providing a first adjustment period for receiving the spread spectrum data prior to the plurality of data-communication periods;
- and
- providing a second adjustment period between one data-communication period and another data-communication period,
- wherein the first adjustment period is longer than the second adjustment period.
2 more elements
A spread spectrum communication apparatus comprising:
- data communication means for communicating spread spectrum data in a plurality of divided data-communication periods;
- and
- adjustment-signal communication means for communicating a first adjustment signal for adjusting reception of spread spectrum data prior to the plurality of data-communication periods and a second adjustment signal between one data-communication period and another communication period,
- wherein the first adjustment signal is longer than the second adjustment signal.
1 more element
A spread spectrum communication method comprising the steps of:
- dividing a communication period for a spread spectrum signal into a plurality of data-communication periods;
- providing an adjustment period between one data-communication period and another data-communication period, such that the spread spectrum signal is continuously communicated by communicating an adjustment signal for adjusting reception of the spread spectrum signal during the adjustment period;
- holding an adjusted setting of a receiving end in the data-communication period;
- and
- providing a first adjustment period prior to the plurality of data-communication periods,
- wherein gain for the adjustment in the first adjustment period prior to the plurality of data communication periods is larger than gain for the adjustment in the adjustment period between the one data-communication period and the other data-communication period.
3 more elements
A spread spectrum communication method comprising the steps of:
- dividing a communication period for a spread spectrum signal into a plurality of data-communication periods;
- providing an adjustment period between one data-communication period and another data-communication period, such that the spread spectrum signal is continuously communicated by communicating an adjustment signal for adjusting reception of the spread spectrum signal during the adjustment period;
- holding an adjusted setting of a receiving end in the data-communication period;
- and
- providing a first adjustment period prior to the plurality of data-communication periods,
- wherein an adjusting signal communicated in the first adjustment period prior to the plurality of data communication periods is longer than an adjusting signal communicated in the adjustment period between the one data communication period and the other data-communication period.
3 more elements
A spread spectrum communication apparatus comprising:
- communication means for communicating a spread spectrum signal divided into a plurality of data-communication periods;
- adjustment-signal communication means for continuously communicating an adjustment signal for adjusting reception of the spread spectrum signal between one data-communication period and another communication period, such that the spread spectrum signal is continuously communicated;
- and
- holding means for holding an adjusted setting of a receiving end in the data-communication period,
- wherein said adjustment-signal communication means communicates a first adjustment signal prior to the plurality of data-communication periods, and
- wherein gain caused by adjustment in accordance with the first adjustment signal prior to the plurality of data-communication periods is larger than gain caused by adjustment in accordance with the adjustment signal between the one data-communication period and the other data-communication period.
3 more elements
A spread spectrum communication apparatus comprising:
- communication means for communicating a spread spectrum signal divided into a plurality of data-communication periods;
- adjustment-signal communication means for continuously communicating an adjustment signal for adjusting reception of the spread spectrum signal between one data-communication period and another communication period, such that the spread spectrum signal is continuously communicated;
- and
- holding means for holding an adjusted setting of a receiving end in the data-communication period,
- wherein said adjustment-signal communication means communicates a first adjustment signal prior to the plurality of data-communication periods, and
- wherein the first adjustment signal prior to the plurality of data-communication periods is longer than the adjustment signal between the one data-communication period and the other data-communication period.
3 more elements
Dependencies are inferred from the claim text.