Remote controller

Abstract

The invention provides a remote controller which is provided with a voltage source and a plurality of keystrokes. The remote controller comprises an input module and a control module. The input module comprises a plurality of resistances and a plurality of switches. A plurality of resistances are used for providing a plurality of circuit paths corresponding to a plurality of keystrokes. A plurality of switches are coupled with a plurality of resistances; when one keystroke is pressed, a corresponding conductive current path is generated. The input module obtains the power provided by the voltage source according to the conductive current path so as to generate an input signal. The control module is coupled with the input module and used for generating an output signal according to the input signal. The remote controller disclosed in the invention can effectively reduce the size and lower the needed cost.

Description

technical field [0001] The present invention relates to a remote controller architecture, in particular to a remote controller architecture that can effectively reduce the number of control IC input pins. Background technique [0002] As the functions of the remote control are becoming more and more powerful, the number of buttons on the remote control is also increasing, so that the volume of the control IC inside the remote control is becoming larger and larger, and its packaging cost is also continuously increasing. Also because of the size of the control IC Increase, so that the size of the remote control also increases. [0003] see figure 1 , figure 1 It is a schematic diagram of an embodiment of a known remote controller. like figure 1 As shown, the structure of the remote control 10 is a structure of directly using keys to control the internal control IC 12 . Wherein, each control key (not shown) corresponds to a switch SW 1 ~SW 64 , so when the control key (n...

AI Technical Summary

Problems solved by technology

like figure 2 As shown, the structure of the remote control 20 is a structure using scanning buttons, if the remote control 20 needs 64 control keys B 1 ~B 64 , the internal control IC 22 of the remote controller 20 needs at least 16 corresponding control keys B 1 ~B 64 Although this method can reduce the number of input pins, it still cannot meet the needs of consumers under the current trend of electronic devices becoming thinner and smaller.

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