PROBLEM TO BE SOLVED: To make it possible to input a plurality of signals generating in accordance with a selection by a user to a MPU with a number of input pins suppressed in a MPU of a HUD device, and, for example, with a burden in CAN communication or a burden of arranging a communication line lessened.SOLUTION: For inputting a multi-value signal to an input pin T2 of an MPU 70, a multi-value signal input circuit 400 for a HUD device is provided. The multi-value signal input circuit 400 for the HUD device has: an input line L1 that is provided a HUD device side, and is pulled up to first potential by pull-up resistance Rp, and is for inputting a signal to the MPU 70; a switch module 200 that is equipped with m pieces of switches to be provided on a vehicle side; and a communication line 112 that does not go through an on-vehicle network such as a CAN and the like for transmitting m pieces of multi-value signals to be output from an output pin Q0 of the switch module 200 to an input pin T2 of the MPU 70.SELECTED DRAWING: Figure 4

    【課題】 HUD装置のMPUにおける入力端子数を抑制し、かつ例えばCAN通信における負担や通信線を配置する上での負担を軽減しつつ、MPUに、ユーザーの選択に応じて発生する複数の信号を入力できるようにする。【解決手段】 MPU70の入力端子T2に多値信号を入力するための、HUD装置用の多値信号入力回路400が設けられ、HUD装置用の多値信号入力回路400は、HUD装置側に設けられ、プルアップ抵抗Rpによって第1の電位にプルアップされ、かつMPU70に信号を入力するための入力線L1と、車両側に設けられるm個のスイッチを備えるスイッチモジュール200と、スイッチモジュール200の出力端子Q0から出力されるm値の多値信号をMPU70の入力端子T2へと伝達するためのCAN等の車載ネットワークを経由しない通信線112と、を有する。【選択図】 図4


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    Title :

    MULTI-VALUE SIGNAL INPUT CIRCUIT FOR HUD DEVICE, AND HUD DEVICE


    Additional title:

    HUD装置用の多値信号入力回路およびHUD装置


    Contributors:

    Publication date :

    2018-11-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G09G Anordnungen oder Schaltungen zur Steuerung oder Regelung von Anzeigevorrichtungen mit statischen Mitteln zur Darstellung veränderlicher Informationen , ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS



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