Patent ID: 9298169
Filing Date: 2016-03-29
CPC Classification: G04G

Claim Text:
1. Wake-up appliance comprising: an alarm device for generating an alarm signal; a control device for controlling the operation of the alarm device, the control device having a snooze input for receiving a user input signal; at least one controllable light-generating device controlled by the control device, wherein said light-generating device is capable of generating light within at least a blue range of the light spectrum; wherein the control device is capable of operating in an alarm state and in a snooze state; wherein the control device is designed to activate, when operating in the alarm state, the alarm device to produce the alarm signal; wherein the control device is designed to make a transition, in response to receiving a user input signal at its snooze input, to the snooze state and control the alarm device to stop the alarm signal or reduce the signal intensity of the alarm signal, then wait for a predetermined snooze interval, and subsequently make a transition back to the alarm state and re-activate the alarm device; and wherein the control device is designed to control, in response to receiving the user input signal at its snooze input, the light-generating device to increase the light intensity in at least part of said blue range; wherein said light-generating device comprises at least one first light source capable of generating output light having a spectrum that is non-zero within at least one sub-range within said blue range of the light spectrum; wherein the control device is designed to increase the light intensity of said at least one first light source in at least part of the blue range of the light spectrum each time the control device receives the user input signal and otherwise remains constant; and wherein said light-generating device further comprises at least one second light source controlled by the control device independently of said at least one first light source.