Input device having a presence sensor
First Claim
1. An input device comprising:
- a housing that forms at least a portion of an exterior of the input device;
a plurality of activatable controls accessible from the exterior of the input device;
a light source at least partially located within the housing to illuminate the activatable controls;
a sensor for detecting a presence of a user, the sensor being separate from the controls and at least partially located within the housing; and
a control device coupled to the light source and the sensor, the control device activating the light source upon detecting the presence of the user.
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Accused Products
Abstract
A system and method for reducing power consumption of a wireless input device is disclosed. The input device may convert between a high power state and a low power state. In the high power state, a transmitter and light sources are activated, whereas both the transmitter and the light sources are deactivated in the low power state. Following a period of inactivity in which neither a key sensor for activatable keys nor a presence sensor for the user transmit input, the input device may convert from the high power state to the low power state to conserve energy. When the presence sensor detects the presence of the user, however, the input converts to the high power state wherein the transmitter and the light sources are activated.
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Citations
20 Claims
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1. An input device comprising:
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a housing that forms at least a portion of an exterior of the input device; a plurality of activatable controls accessible from the exterior of the input device; a light source at least partially located within the housing to illuminate the activatable controls; a sensor for detecting a presence of a user, the sensor being separate from the controls and at least partially located within the housing; and a control device coupled to the light source and the sensor, the control device activating the light source upon detecting the presence of the user. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A wireless keyboard comprising:
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a housing that forms at least a portion of an exterior of the keyboard, the housing defining a forward edge positioned proximal a user during use of the keyboard, a rearward edge positioned away from the user during use of the keyboard, and a pair of side edges extending between the forward edge and the rearward edge; a plurality of activatable keys that are depressible toward an interior of the housing, the keys being accessible from the exterior of the keyboard; a first sensor system having at least one first sensor that detects activation of the keys; a transmitter that transmits data associated with the activation of the keys; and a second sensor system having at least one second sensor that detects a presence of a user, the at least one second sensor being located within the housing and proximal the forward edge, and the at least one second sensor being separate from the at least one first sensor. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method comprising steps of:
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determining a time delay for establishing a data connection between a wireless input device and a computer; detecting a presence of a user proximal the wireless input device; increasing an intensity of a light source during a time period substantially equal to the time delay. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification