Abstract: A backlight control circuit includes a power supply circuit, a local dimming circuit, a backlight driving circuit, and a supply voltage adjustment circuit. The power supply circuit is used to output the power supply voltage to a backlight module. The backlight module has multiple dimming zones, and each dimming zone has light emitting diodes (LEDs). The local dimming circuit is used to generate a local dimming signal according to image data and a configuration of the dimming zones. The backlight driving circuit is used to generate backlight driving signals to the dimming zones of the backlight module according to the local dimming signal. The supply voltage adjustment circuit is used to generate a first supply voltage adjustment signal to the power supply circuit for adjusting the power supply voltage based on the local dimming signal and a characteristic data of each LED in the dimming zones.

Abstract: A display device includes a display panel, a backlight module and a circuit. The display panel includes multiple regions. The back light module includes multiple light emitting units, and each region corresponds to at least one of the light emitting units. The circuit includes a calibration lookup table corresponding to a first light emitting unit. The calibration lookup table records a parameter and multiple duty cycles. The circuit accesses the calibration lookup table and determines an output duty cycle according to the duty cycles. The circuit determines a current value of the first light emitting unit to drive the first light emitting unit according to the output duty cycle and the parameter.

Abstract: A display device includes a display panel, a backlight module and a circuit. The display panel includes multiple regions. The back light module includes multiple light emitting units, and each region corresponds to at least one of the light emitting units. The circuit includes a calibration lookup table corresponding to a first light emitting unit. The calibration lookup table records a parameter and multiple duty cycles. The circuit accesses the calibration lookup table and determines an output duty cycle according to the duty cycles. The circuit determines a current value of the first light emitting unit to drive the first light emitting unit according to the output duty cycle and the parameter.

Abstract: A display device includes a display panel, a backlight module and a circuit. The display panel includes multiple regions. The back light module includes multiple light emitting units, and each region corresponds to at least one of the light emitting units. The circuit includes a calibration lookup table corresponding to a first light emitting unit. The calibration lookup table records a parameter and multiple duty cycles. The circuit accesses the calibration lookup table and determines an output duty cycle according to the duty cycles. The circuit determines a current value of the first light emitting unit to drive the first light emitting unit according to the output duty cycle and the parameter.

Abstract: A light module driving method for an illumination device, wherein the light module driving method includes an outputting operation of outputting a light driving signal according to a source; a transforming operation of transforming the light driving signal into a plurality of modulated light driving signals according to a compensation and calibration unit; and a driving operation of driving a plurality of lighting zones corresponding to a light-emitting diode (LED) module of the light module according to the plurality of modulated light driving signals.

Abstract: A method for generating offset current values includes: setting a current setting sequence which includes multiple current setting values; driving a light emitting unit and measuring a current value of the light emitting unit; establishing a recurrent neural network (RNN) including an input layer, a hidden layer and an output layer; and inputting the current value into the hidden layer, inputting the current setting values into the input layer sequentially, and obtaining offset values from the output layer sequentially. The offset values correspond to the current setting values respectively.

Abstract: A light module driving method for a illumination device, wherein the illumination device includes a driving unit, a transformation unit, a compensation and calibration unit and a light module, and the driving unit is configured to output a light driving signal according to a source, wherein the transformation unit is coupled to the driving unit and the light module, and the light driving signal is configured to drive a plurality of lighting zones corresponding to a light-emitting diode (LED) module of the light module, wherein the light module driving method includes transforming, by the transformation unit, the light driving signal into a plurality of modulated light driving signals according to the compensation and calibration unit to drive each lighting zone corresponding to the LED module.

Abstract: A method for generating offset current values includes: setting a current setting sequence which includes multiple current setting values; driving a light emitting unit and measuring a current value of the light emitting unit; establishing a recurrent neural network (RNN) including an input layer, a hidden layer and an output layer; and inputting the current value into the hidden layer, inputting the current setting values into the input layer sequentially, and obtaining offset values from the output layer sequentially. The offset values correspond to the current setting values respectively.

Abstract: A display device includes a display panel, a backlight module and a circuit. The display panel includes multiple regions. The back light module includes multiple light emitting units, and each region corresponds to at least one of the light emitting units. The circuit includes a calibration lookup table corresponding to a first light emitting unit. The calibration lookup table records a parameter and multiple duty cycles. The circuit accesses the calibration lookup table and determines an output duty cycle according to the duty cycles. The circuit determines a current value of the first light emitting unit to drive the first light emitting unit according to the output duty cycle and the parameter.

Abstract: A light module driving method for a illumination device, wherein the illumination device includes a driving unit, a transformation unit, a compensation and calibration unit and a light module, and the driving unit is configured to output a light driving signal according to a source, wherein the transformation unit is coupled to the driving unit and the light module, and the light driving signal is configured to drive a plurality of lighting zones corresponding to a light-emitting diode (LED) module of the light module, wherein the light module driving method includes transforming, by the transformation unit, the light driving signal into a plurality of modulated light driving signals according to the compensation and calibration unit to drive each lighting zone corresponding to the LED module.

Abstract: A method of demodulating a signal packet includes steps of: determining whether a pulse width of each of pulses of one of bits of the signal packet is associated with bit 0 or bit 1; updating first counting data associated with a number of the pulses that define bit 0, and determining whether the first counting data is greater than a first threshold value; deciding that said one of the bits of the signal packet is a bit 0; updating second counting data associated with a number of the pulses that define bit 1, and determining whether the second counting data is greater than the second threshold value; deciding that said one of the bits of the signal packet is a bit 1.

Abstract: A lamp control system includes at least one first lamp network, at least one second lamp network and a lamp control gateway. The first lamp network is configured to emit light and to transmit a first message, and includes a first physical layer. The second lamp network is configured to emit light and to transmit a first message, and includes a second physical layer different from the first physical layer. The lamp control gateway includes a processing module that is configured to receive the first message and the second message and to convert the first message and the second message in such a way that a first converted message and a second converted message comply with a predefined protocol.

Abstract: A lighting system, which is composed of a redundant power supply and at least one luminaire with a lamp control module contained therein. The lamp control module includes at least one light source and a light control module. The light control module includes a current control unit, at least one switch unit, and a processing unit. The current control unit is to control the DC current. The switch unit is electrically connected to the light source and enables the DC current source to selectively control DC current to at least one light source. The processing unit is used to adjust value of DC current. The luminaire includes the lamp control module, housing and power lines. The redundant power supply contains at least one AC-to-DC converter module, and the redundant power supply provides constant DC power to at least one light control module of the luminaire.

Abstract: A method of demodulating a signal packet includes steps of: determining whether a pulse width of each of pulses of one of bits of the signal packet is associated with bit 0 or bit 1; updating first counting data associated with a number of the pulses that define bit 0, and determining whether the first counting data is greater than a first threshold value; deciding that said one of the bits of the signal packet is a bit 0; updating second counting data associated with a number of the pulses that define bit 1, and determining whether the second counting data is greater than the second threshold value; deciding that said one of the bits of the signal packet is a bit 1.

Abstract: A lamp control system includes at least one first lamp network, at least one second lamp network and a lamp control gateway. The first lamp network is configured to emit light and to transmit a first message, and includes a first physical layer. The second lamp network is configured to emit light and to transmit a first message, and includes a second physical layer different from the first physical layer. The lamp control gateway includes a processing module that is configured to receive the first message and the second message and to convert the first message and the second message in such a way that a first converted message and a second converted message comply with a predefined protocol.

Abstract: An adaptive control system includes a plurality of coupling circuits. Each of the coupling circuits is adapted to connect electrically a respective one of the electronic devices to the multi-carrier channel, and is operable to search for an idle frequency band of a multi-carrier channel and to enable the respective one of the electronic devices to communicate with a corresponding one of the electronic devices via the idle frequency band of the multi-carrier channel.

Abstract: A lighting system, which is composed of a redundant power supply and at least one luminaire with a lamp control module contained therein. The lamp control module includes at least one light source and a light control module. The light control module includes a current control unit, at least one switch unit, and a processing unit. The current control unit is to control the DC current. The switch unit is electrically connected to the light source and enables the DC current source to selectively control DC current to at least one light source. The processing unit is used to adjust value of DC current. The luminaire includes the lamp control module, housing and power lines. The redundant power supply contains at least one AC-to-DC converter module, and the redundant power supply provides constant DC power to at least one light control module of the luminaire.

Abstract: An adaptive control system includes a plurality of coupling circuits. Each of the coupling circuits is adapted to connect electrically a respective one of the electronic devices to the multi-carrier channel, and is operable to search for an idle frequency band of a multi-carrier channel and to enable the respective one of the electronic devices to communicate with a corresponding one of the electronic devices via the idle frequency band of the multi-carrier channel.

Abstract: A keyless entry system comprises a resonant unit, a control unit and a portable device. The resonant unit is disposed to at least one door and generates a sensing signal when sensing a user approaching or touching the door. The control unit receives the sensing signal and controls the resonant unit to transmit a first authentication signal. The portable device receives the first authentication signal and transmits a second authentication signal according to the first authentication signal. The control unit receives the second authentication signal and controls the door according to the second authentication signal.

Abstract: A smart vehicle searching system with automatic positioning function is disclosed. The smart vehicle searching system with automatic positioning function includes a vehicle having a control module for outputting a control signal; a vehicle searching module having a first global positioning system unit and connected to the control module for receiving the control signal; a smart phone having a second global positioning system unit and a data storage unit; and a transmission medium connected to the vehicle searching module and the smart phone. The first global positioning system unit is operated in response to the control signal.