APPARATUS WITH OPTICAL FUNCTIONALITY AND POWER MANAGEMENT AND ASSOCIATED METHODS
First Claim
1. An apparatus, comprising:
- a sensor integrated circuit (IC), adapted for ambient light sensing (ALS) and/or proximity detection, the sensor integrated circuit (IC) comprising;
an integrated analog-to-digital converter (ADC) adapted to convert at least one signal related to ambient light sensing (ALS) and/or proximity detection to at least one digital signal;
an integrated light emitting diode (LED) driver adapted to drive at least one light emitting diode (LED); and
an integrated power management unit (PMU) adapted to reduce power dissipation of the sensor integrated circuit (IC) by running at a low duty cycle the integrated light emitting diode (LED) driver and the integrated analog-to-digital converter (ADC).
1 Assignment
0 Petitions
Accused Products
Abstract
In an exemplary embodiment, an apparatus includes a sensor integrated circuit (IC) that is adapted for ambient light sensing (ALS) and/or proximity detection. The sensor integrated circuit (IC) includes an integrated analog-to-digital converter (ADC) that is adapted to convert at least one signal related to ambient light sensing (ALS) and/or proximity detection to at least one digital signal, and an integrated light emitting diode (LED) driver that is adapted to drive at least one LED. The sensor IC also includes an integrated power management unit (PMU) that is adapted to reduce power dissipation of the sensor IC by running at a low duty cycle the integrated LED driver and the integrated ADC.
-
Citations
24 Claims
-
1. An apparatus, comprising:
a sensor integrated circuit (IC), adapted for ambient light sensing (ALS) and/or proximity detection, the sensor integrated circuit (IC) comprising; an integrated analog-to-digital converter (ADC) adapted to convert at least one signal related to ambient light sensing (ALS) and/or proximity detection to at least one digital signal; an integrated light emitting diode (LED) driver adapted to drive at least one light emitting diode (LED); and an integrated power management unit (PMU) adapted to reduce power dissipation of the sensor integrated circuit (IC) by running at a low duty cycle the integrated light emitting diode (LED) driver and the integrated analog-to-digital converter (ADC). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
9. A method of sensing light using a sensor integrated circuit (IC), the method comprising:
-
(i) running the sensor integrated circuit (IC) in a sleep mode; (ii) running the sensor integrated circuit (IC) in a convert mode upon occurrence of at least one condition, wherein during the convert mode the sensor integrated circuit (IC) converts at least one signal related to ambient light sensing (ALS) and/or proximity detection to at least one digital signal; and (iii) running the sensor integrated circuit (IC) in a process mode to process the at least one digital signal. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. A method of sensing light using a sensor integrated circuit (IC), the method comprising:
-
running a light emitting diode (LED) driver to drive at least one light emitting diode (LED); sensing ambient light and/or reflected light from an object for proximity detection to generate at least one analog signal; and running with a low duty cycle an analog-to-digital converter (ADC) to convert the at least one analog signal into at least one digital signal. - View Dependent Claims (19, 20, 21, 22, 23, 24)
-
Specification