摘要:
A receiving method for dual-mode receiver. When a received communication signal is a wideband signal, the dual-mode receiver is configured as a direct-conversion receiver, and when a received communication signal is a narrowband signal, the dual-mode receiver is configured as a low-IF receiver.
摘要:
The present invention discloses an ESD (ELECTRO-STATIC DISCHARGE) protection circuit device, the ESD (ELECTRO-STATIC DISCHARGE) protection circuit device includes a first switching device having a first terminal coupled to a first signal; a first control device coupled to the first signal for generating a first control signal according to the first signal; a second switching device having a first terminal coupled to a second signal, a second terminal coupled to a second terminal of the first switching device; and a second control device coupled to the second signal and a control terminal of the first switching device for generating a second control signal according to the second signal; wherein the first control signal coupled to the control terminal of the second switching device, and the second control signal coupled to the control terminal of the first switching device.
摘要:
A charge recycle system implemented in a liquid crystal display includes a common voltage source, a control unit, and a source driving circuit. Before the common voltage source switches its common voltage level, the control unit controls the common voltage source to let a voltage driving circuit of the common voltage source not coupled to the output end of the common voltage source, and sends a charge recycle enable signal to the source driving circuit to adjust the source voltage level. By boosting or pulling down the source voltage level, the charges stored in liquid crystal units of the liquid crystal display can be recycled to the common voltage source, therefore raising charge utilization efficiency and lowering power consumed by the liquid crystal display.
摘要:
The present invention discloses a voltage level generating device. The voltage level generating device includes: a reference voltage generating module, a first circuit module, a second circuit module, and a switch module. The voltage level generating device disclosed in the present invention only requires a buffer, a voltage regulator, and a arithmetic logic unit (ALU) to attain the same function of the conventional common voltage level generating device, and thus the circuit layout area can be reduced so as to decrease the cost of the integrated circuit (IC). In addition, the voltage level generating device disclosed in the present invention also can select different output of voltage level in order to reduce the power consumption of a display device.
摘要:
A light emitting apparatus includes a clock generating circuit and a light-emitting module. The clock generating circuit is for generating a clock control signal. The light emitting module includes a current supplying unit and a light emitting unit. The current supplying unit is for controlling a driving current flowing through a path, and includes a driving current source and a switch unit, which are both positioned in the path. The driving current source is for providing the driving current. The switch unit is coupled to the driving current source and the clock generating circuit, and refers to the clock control signal to open or short for controlling whether the driving current flows through the path. The light emitting unit is positioned in the path and coupled to the current supplying unit, and is for providing a light source according to the driving current.
摘要:
A driving circuit includes a data driving circuit, including a plurality of driving circuit modules respectively corresponding to a plurality of channels; and a control unit, positioned in at least one circuit sub-module of each driving circuit module of the plurality of driving circuit module. When the control unit is enabled, the control unit controls the driving circuit modules output auxiliary display data having a predetermined gray value to drive the display apparatus. When the control unit is disabled, utilizing the driving circuit module to drive the display apparatus according to original display data. A related method of a display apparatus is also disclosed.
摘要:
A method for backlight control includes: receiving a display synchronization signal; generating a backlight control signal according to the display synchronization signal; and driving a backlight source according to the backlight control signal. An apparatus for backlight control includes: a signal receiving circuit, for receiving a display synchronization signal; a control circuit, coupled to the signal receiving circuit, for generating a backlight control signal according to the display synchronization signal; and a driving circuit, coupled to the control circuit, for driving a backlight source according to the backlight control signal.
摘要:
The present invention discloses a voltage level generating device. The voltage level generating device includes: a reference voltage generating module, a first circuit module, a second circuit module, and a switch module. The voltage level generating device disclosed in the present invention only requires a buffer, a voltage regulator, and a arithmetic logic unit (ALU) to attain the same function of the conventional common voltage level generating device, and thus the circuit layout area can be reduced so as to decrease the cost of the integrated circuit (IC). In addition, the voltage level generating device disclosed in the present invention also can select different output of voltage level in order to reduce the power consumption of a display device.
摘要:
A device for driving an LCD panel comprises: a gray level voltage generation circuit, for generating gray level voltages, and determining whether the gray level voltages are generated by utilizing a first set of reference voltages or a second set of reference voltages according to a polarity inversion control signal, where the gray level voltage generation circuit determines whether a gray level voltage is generated by utilizing a maximum of the first set of reference voltages or a maximum of the second set of reference voltages, and determines whether another gray level voltage is generated by utilizing a minimum of the first set of reference voltages or a minimum of the second set of reference voltages; and a source driving circuit, for selecting a gray level voltage according to display data or inverted data of the display data to drive a source of a display cell of the LCD panel.
摘要:
A level shifter circuit includes: K level shifter units for receiving K input signals having a first voltage level range and outputting K output signals having a second voltage level range, wherein the second voltage level range is greater than the first voltage level range. Each level shifter unit is utilized to output an output signal at an output end and includes: a first switch, coupled between the output end and a first voltage source for controlling the electrical connection between the first voltage source and the output end according to an input signal; and (K−1) second switches, connected in parallel between the output end and a second voltage source, for respectively controlling its ON/OFF status according to (K−1) output signals except for the output signal. K is an integer.