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His 1955 invention, marketed as the Flash-Matic, used visible light to remotely control a television outfitted with four photocells in the cabinet at the corners of the screen. Aiming the pistol-shaped control at an individual photocell could turn the receiver on and off, mute the sound and change the channel up or down.
The Zenith Flash-Matic was the first wireless remote control, invented by Eugene Polley in 1955. It had only one button that was used to power on and off, channel up, channel down, and mute. The Flash-matic's phototechnology was a significant innovation in television and allowed for wireless signal transfer previously exclusive to radio. [1] [2]
Charles Adler Jr. (June 20, 1899 – October 23, 1980) was an American inventor and engineer.He is most known for developing devices meant to improve transportation safety, including sonically actuated traffic lights, colorblind road signals, pedestrian push-buttons, and flashing aircraft lights.
Pressing a button on the pendant contacts a Life Alert call center, and a Life Alert dispatcher then contacts 9-1-1. The company requires service contract with a minimum term of three years. Some people call life alert and have them transferred to their dispatch office and a 911 operator [3]
A push-button telephone is a telephone that has buttons or keys for dialing a telephone number, in contrast to a rotary dial used in earlier telephones.. Western Electric experimented as early as 1941 with methods of using mechanically activated reeds to produce two tones for each of the ten digits and by the late 1940s such technology was field-tested in a No. 5 Crossbar switching system in ...
Doro AB, known as Doro, is a Swedish consumer electronics and assistive technology company focused on the elderly and improving the lives of seniors. Founded in 1974 in Sweden as a challenger to the state-run telecommuncations monopoly, the company develops communications products and services designed primarily for the elderly, such as mobile phones and telecare systems. [2]
The iconic company went on to be the top video-rental company in the U.S. throughout the '90s and early 2000s. November 20, 1985 — Microsoft releases the first version of Windows The original ...
A bane of push-to-talk systems is the stuck microphone: A radio locked on transmit, which disrupts communications on a two-way radio system. One example of this problem occurred in a car with a concealed two-way radio installation where the microphone and coiled cord were hidden inside the glove box.