Lighting system for avionics applications and control method thereof
First Claim
1. A lighting system of an avionics apparatus, comprising:
- at least a light source;
a control unit coupled to the light source and configured to control operation of said light source based on a management PWM signal; and
an interface unit coupled to said light source and configured to receive said management PWM signal from said control unit;
wherein, during a lighting management mode, said management PWM signal is designed to carry management information for controlling said light source, and said interface unit is operable to decode said management information from said management PWM signal for driving said light source accordingly, and wherein said control unit is configured to code said management information using a first waveform parameter of said management PWM signal, and at least a second waveform parameter of said management PWM signal, different from said first waveform parameter.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed herein is a lighting system, in particular for an avionics apparatus, having at least a light source and a control unit coupled to the light source and controlling operation thereof based on a management PWM signal; the management PWM signal may have a shape such as to limit radio frequency emissions. According to an embodiment, the lighting system has an interface unit coupled to the light source and receiving the management PWM signal from the control unit; during a lighting management mode, the management PWM signal carries management information for controlling the light source, and the interface unit is operable to decode the management information, for driving the light source; in particular, the control unit codes the management information using a first waveform parameter of the management PWM signal, and at least a second waveform parameter of the management PWM signal, different from the first waveform parameter. According to a further embodiment, the lighting system has at least one storage element coupled to the light source, and a transmission protocol is associated to the management PWM signal, envisaging a bidirectional communication between the control unit and the interface unit, by means of which management data are read from, and/or written to, the storage element.
17 Citations
36 Claims
-
1. A lighting system of an avionics apparatus, comprising:
-
at least a light source; a control unit coupled to the light source and configured to control operation of said light source based on a management PWM signal; and an interface unit coupled to said light source and configured to receive said management PWM signal from said control unit;
wherein, during a lighting management mode, said management PWM signal is designed to carry management information for controlling said light source, and said interface unit is operable to decode said management information from said management PWM signal for driving said light source accordingly, and wherein said control unit is configured to code said management information using a first waveform parameter of said management PWM signal, and at least a second waveform parameter of said management PWM signal, different from said first waveform parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
-
-
26. An avionics apparatus, including a lighting system, comprising:
-
at least a light source; a control unit coupled to the light source and configured to control operation of said light source based on a management PWM signal; and an interface unit coupled to said light source and configured to receive said management PWM signal from said control unit;
wherein, during a lighting management mode, said management PWM signal is designed to carry management information for controlling said light source, and said interface unit is operable to decode said management information from said management PWM signal for driving said light source accordingly, and wherein said control unit is configured to code said management information using a first waveform parameter of said management PWM signal, and at least a second waveform parameter of said management PWM signal, different from said first waveform parameter.
-
-
27. A method for controlling a lighting system of an avionics apparatus having at least a light source, said method comprising controlling operation of said light source based on a management PWM signal, which carries management information for controlling said light source, the method comprising:
-
coding, by a control unit (3) of said lighting system during a lighting management mode, said management information using a first waveform parameter of said management PWM signal, and at least a second waveform parameter of said management PWM signal, different from said first waveform parameter; and decoding, by an interface unit of said lighting system, said management information for driving said light source. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
-
-
35. A method for controlling an avionics apparatus, comprising:
-
controlling a lighting system having at least a light source, said method comprising controlling operation of said light source based on a management PWM signal, which carries management information for controlling said light source, the method comprising; coding, by a control unit of said lighting system during a lighting management mode, said management information using a first waveform parameter of said management PWM signal, and at least a second waveform parameter of said management PWM signal, different from said first waveform parameter; and decoding, by an interface unit of said lighting system, said management information for driving said light source.
-
-
36. A computer program product comprising program code configured to implement, when executed in a control unit of a lighting system, wherein the control unit is coupled to a light source and configured to control operation of said light source based on a management PWM signal, a method comprising:
controlling operation of said light source based on a management PWM signal, which carries management information for controlling said light source, comprising, during a lighting management mode; coding, by a control unit of said lighting system, said management information using a first waveform parameter of said management PWM signal, and at least a second waveform parameter of said management PWM signal, different from said first waveform parameter; and decoding, by an interface unit of said lighting system, said management information for driving said light source.
Specification