A remote control is an electronic device used to remotely operate a machine.
Term remote control may also be referred to as "remote" or "controller", omitted. It is known that many other names, as well as names such as "Clicker", "Changer", "Splash", "Magic Hand", etc. are common, and the remote control is used to issue commands from a remote location to a television or other consumer Electronics such as sound systems and DVD players. Remote control devices, these devices are usually small in size, wireless handheld objects with an array of buttons to adjust various settings, such as TV channels, queues, etc., and quantity. In fact, with this control on most modern devices, the remote contains control of all functions, while the control device itself has only a few basic primary controls. Most of these remote controls communicate with their respective devices through infrared (IR) signals, and to a few through radio signals. They are usually powered by small AAA or AA size batteries.
History
One of the earliest examples of remote control was by Nikola Tesla in 1893, and he set out his patent, U.S. Patent 613809, to name the method for an instrument Control mechanism of a moving vehicle or vehicle.
In 1903, Leonardo Torres Quevedo introduced telekino to the Academy of Sciences in Paris, accompanied by a briefing and made a test demonstration. In the same year he received patents in France, Spain, England, and the United States. The telekino consists of a robot that is said to transmit electromagnetic waves on command. It constituted the world's first appliance to be radio controlled and was a pioneer in the field of remote control. In 1906, in the presence of the king and in front of a great crowd, Torres successfully demonstrated the invention in the port of Bilbao, guiding the ship from the shore. Later, he wanted to try using the telekino for artillery shells and torpedoes, but had to abandon the project due to lack of funds.
The first remotely controlled model aircraft was flown in 1932, and the use of remote control technology for military purposes was worked on during World War II, one of the results of which was the German Wasserfall missile.
By the late 1930s, some radio manufacturers offered remote controls for some of their higher-end models. Most of these have been connected to a set of wires to be controlled, but the Philco Enigma Control (1939) was a battery-operated low-frequency radio transmitter [1], thus becoming the first wireless remote control of a consumer electronics device.
TV Remote Control
The first remote intended to control a television was produced by Zenith Broadcasting Company in the early 1950s. The remote - the default so-called "lazy one" is connected to the TV via a custom wire. To improve the tedious setup, a wireless remote control, the so-called "flashmatic" was introduced in 1955, which worked by shining a beam of light onto a photovoltaic cell. Unfortunately, cells do not distinguish light from remote and light from other sources and flashmatic also requires that the remote control be pointed very accurately at the receiver [1]
Developed in 1956 by Robert Adler "Zenith Space Command", this is a wireless remote control. This is mechanical and uses ultrasound to change the channel and volume. When the user presses a button on the remote control, it clicks on a bar, hence the name "Clicker". Each bar spits out a different frequency and the circuit in the TV detects this noise. The invention of the transistor made the electronic remote control as cheap as possible containing a piezoelectric crystal, which is fed by an oscillating current at a frequency that approaches or exceeds the lower limit of human hearing but still emits sound to dogs. The receiver contains a microphone connected to the circuit, which is tuned to the same frequency. Some problems with this method of receiving receivers can be caused by unexpected naturally occurring noise, and some people, especially young women, can hear a harsh ultrasound signal. There was even a famous incident where a toy xylophone changed the channels on these types of TVs because some of the colors from the xylophone matched the ultrasonic frequencies of the remote control.
The impetus for more sophisticated types of television remote controls came in the late 1970s, with the development of the Ceefax teletext service, by the BBC.
Most commercial remote controls at that time produced a limited number of functions, sometimes only four: next station, front station, increased or decreased volume. This type of control did not satisfy the scientists' need for the 3-digit number found in the Illustration Page ***. A remote control to select the teletext page will require buttons for each number from zero to nine, as well as other control functions such as switching from text to picture, with the normal TV controls of volume, station, brightness, color, intensity wait. Early teletext used a wired remote control to select the page, but continuous use of the remote control required for teletext soon showed that a wireless device was necessary. So BBC engineers began talks with one or two television manufacturers, which resulted in early prototypes, around 1977-1978, that could control a larger set of functions. ITT Industries was one of the companies that later changed its name to ITT Industries Protocol Infrared Communications. [ 2 ]
Other remote controls
In the 1980s Steve Wozniak of Apple, started the company designation CL9. The purpose of this bill is for the company to create a remote control that can operate multiple electronic devices. The core unit, as it was named (Controller Remote Control Device), was launched in the fall of 1987. The good thing about this remote is that it can "learn" remote control signals from other different devices. It also has the ability to perform specific or multiple functions at different times with the 24 hours it is built to operate. It was also the first remote control that could be connected to a computer and loaded with the latest software code distributed on demand. Core units never made a huge impact on the market. It's also too complex a program for the average user, but it received good reviews from those who were able to figure out how to program it. These obstacles eventually led to the death of CL9, but one of its employees continued to do business under the name, Celadon. This is the first computer controlled learning remote on the market. [ 3 ]
By the early 2000s, the number of consumer electronics products in most homes has increased dramatically. According to the Consumer Electronics Association, the average American household has four remote controls. Operating a home theater may require as many as 5 or 6 remote controls, including a cable or satellite television receiver, VCR or digital video recorder, DVD player, television and audio amplifier. Several of these remotes may need to be used sequentially, but since there are no accepted interface guidelines, the process is increasingly complicated. Many experts, including Jacob Nielsen [4], a renowned usability expert and Robert Adler, the inventor of the modern remote, describe how confusing, clunky, and exponentially frustrating the remote control became.