Wireless communication system
AssigneeCanon Kabushiki Kaisha
InventorHiroto Tamaki
Life of this patent
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Abstract
A wireless communication system includes a first coupler having a first pair of electrodes and second coupler having a second pair of electrodes that at least partially oppose the first pair of electrodes. A transmission circuit applies a differential signal to the first coupler. A reception circuit receives a differential signal output from the second coupler based on electromagnetic coupling between the first coupler and the second coupler. A distance between centroids of the first pair of electrodes differs from a distance between centroids of the second pair of electrodes.
Claims20
A wireless communication system comprising:
- a first coupler having a first pair of electrodes;
- a second coupler having a second pair of electrodes that at least partially oppose the first pair of electrodes;
- a transmission circuit configured to apply a differential signal to the first coupler;
- a reception circuit configured to receive a differential signal output from the second coupler based on electromagnetic coupling between the first coupler and the second coupler;
- and
- a movement control unit configured to move at least one of the first coupler and the second coupler in a predetermined direction while maintaining a positional relationship in which the first pair of electrodes and the second pair of electrodes at least partially oppose each other,
- wherein
- a distance between centroids of the first pair of electrodes differs from a distance between centroids of the second pair of electrodes,
- a first direction in which the centroids of the first pair of electrodes are connected substantially coincides with a second direction in which the centroids of the second pair of electrodes are connected,
- the first pair of electrodes have substantially the same size and shape, and
- the second pair of electrodes have substantially the same size and shape.
A method for controlling a wireless communication system that has a first coupler having a first pair of electrodes, and a second coupler having a second pair of electrodes that at least partially oppose the first pair of electrodes, the method comprising:
- applying a differential signal to the first coupler;
- receiving the differential signal output from the second coupler based on electromagnetic coupling between the first coupler and the second coupler;
- and
- moving at least one of the first coupler and the second coupler in a predetermined direction while maintaining a positional relationship in which the first pair of electrodes and the second pair of electrodes at least partially oppose each other,
- wherein
- a distance between centroids of the first pair of electrodes differs from a distance between centroids of the second pair of electrodes,
- a first direction in which the centroids of the first pair of electrodes are connected substantially coincides with a second direction in which the centroids of the second pair of electrodes are connected,
- the first pair of electrodes have substantially the same size and shape, and
- the second pair of electrodes have substantially the same size and shape.
A wireless communication system comprising:
- a first coupler having a first pair of electrodes;
- a second coupler having a second pair of electrodes that at least partially oppose the first pair of electrodes;
- a transmission circuit configured to apply a differential signal to the first coupler;
- and
- a reception circuit configured to receive a differential signal output from the second coupler based on electromagnetic coupling between the first coupler and the second coupler,
- wherein
- a distance between centroids of the first pair of electrodes differs from a distance between centroids of the second pair of electrodes,
- a first direction in which the centroids of the first pair of electrodes are connected substantially coincides with a second direction in which the centroids of the second pair of electrodes are connected,
- the first pair of electrodes have substantially the same size and shape,
- the second pair of electrodes have substantially the same size and shape,
- a second sum of widths of the second pair of electrodes and a distance therebetween is larger than a first sum of widths of the first pair of electrodes and a distance therebetween,
- the width of each of the first pair of electrodes is narrower than the width of each of the second pair of electrodes, and
- the distance between the first pair of electrodes is longer than the distance between the second pair of electrodes.
A method for controlling a wireless communication system that has a first coupler having a first pair of electrodes, and a second coupler having a second pair of electrodes that at least partially oppose the first pair of electrodes, the method comprising:
- applying a differential signal to the first coupler;
- and
- receiving the differential signal output from the second coupler based on electromagnetic coupling between the first coupler and the second coupler,
- wherein
- a distance between centroids of the first pair of electrodes differs from a distance between centroids of the second pair of electrodes,
- a first direction in which the centroids of the first pair of electrodes are connected substantially coincides with a second direction in which the centroids of the second pair of electrodes are connected,
- the first pair of electrodes have substantially the same size and shape,
- the second pair of electrodes have substantially the same size and shape,
- a second sum of widths of the second pair of electrodes and a distance therebetween is larger than a first sum of widths of the first pair of electrodes and a distance therebetween,
- the width of each of the first pair of electrodes is narrower than the width of each of the second pair of electrodes, and
- the distance between the first pair of electrodes is longer than the distance between the second pair of electrodes.
Dependencies are inferred from the claim text.