Patent No.613809

Probably the battery is not installed in place. If there is no problem with battery installation, the metal plates or wires at both ends of the battery box are uneven or have poor contact. Most of them are caused by the damage of the crystal oscillator in the remote control of the set-top box, and the crystal oscillator should be replaced.

Wireless remote controller, as its name implies, is a device for remote control of machines, which was first invented by nikola tesla of the United States in 1898. There are two kinds of common in the market, one is the infrared remote control mode commonly used in household appliances, and the other is the radio remote control mode commonly used in burglar alarm equipment, door and window remote control, car remote control and so on.

It is impossible to test who invented the first remote control. But the earliest remote controller was invented in 1898 by an inventor named nikola tesla (1856- 1943) (U.S. patent number 6 13809)? [1], which is called "method and device for controlling a moving vehicle or vehicle mechanism"

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