Infrared technology has persisted in TV remotes due to its low cost and compatibility. While many remotes include Bluetooth for added features, they still utilize IR for basic functions like powering the TV.
The first remote control, the Lazy Bones, was wired and introduced in 1950 by Zenith Radio Corporation. The first wireless remote, the Flash-Matic, was launched in 1955, employing visible light to command TVs. By the 1980s, infrared remotes became the industry standard, a status they maintain today.
Infrared remotes operate by emitting quick pulses of invisible light via an LED. The TV's infrared receiver decodes these signals to process commands. Observing the remote through a phone camera can reveal the LED flashing, demonstrating its functionality.
Though modern televisions include Bluetooth-enabled remotes offering features like voice control, they continue to ship with an infrared transmitter. This dual-functionality allows users to control the TV even when the Bluetooth connection is inactive, particularly in standby mode.
Implementing infrared technology is extremely cost-effective, thanks to extensive mass production. Existing entertainment equipment has been designed around IR compatibility for decades, making a complete transition to Bluetooth impractical.
The co-existence of Bluetooth and infrared in remotes provides convenience and reliability. This dual approach allows manufacturers to leverage the benefits of both technologies while ensuring compatibility with older devices.
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Infrared technology has persisted in TV remotes due to its low cost and compatibility. While many remotes include Bluetooth for added features, they still utilize IR for basic functions like powering the TV.