MONITORING DEVICE AND LIGHT DISTRIBUTION CONTROL DEVICE FOR LAMP

• Main Authors: HAYAMIZU HISAFUMI, SUZUKI KAZUHIRO, FUNAMI YUSUKE
• Format: Patent
• Language: English; Japanese
• Published: 10.01.2019
• Subjects: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING ORSUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES INGENERAL; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PERFORMING OPERATIONS; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION; TRANSPORTING; VEHICLES IN GENERAL

To provide a monitoring device enabling accurate monitoring even when a delay occurs in a monitoring signal.SOLUTION: A monitoring device includes comparing means 52 for comparing the signal level of a transmission signal Ss with the signal level of a monitoring signal Sm which has received the transmission signal Ss at a timing synchronized with a clock signal CLK to monitor the transmission signal Ss and clock control means 54 for synchronizing the clock signal CLK with a timing when the level of the monitoring signal Sm has changed. When the clock signal CLK is synchronized with the monitoring signal Sm, it is possible to correctly monitor the transmission signal Ss even when a delay occurs in the monitoring signal Sm.SELECTED DRAWING: Figure 5 【課題】監視信号に遅延が生じた場合においても正確な監視を可能にした監視装置を提供する。【解決手段】送信信号Ｓｓの信号レベルと、この送信信号Ｓｓを受信した監視信号Ｓｍの信号レベルとをクロック信号ＣＬＫに同期したタイミングで比較して送信信号Ｓｓを監視する比較手段５２と、監視信号Ｓｍの信号レベルが変化したタイミングにクロック信号ＣＬＫを同期させるクロック制御手段５４を備える。クロック信号ＣＬＫと監視信号Ｓｍとの同期をとることにより、監視信号Ｓｍに遅延が生じたときにも送信信号Ｓｓを正しく監視することができる。【選択図】 図５