Robert Adler (December 4, 1913 – February 15, 2007) was an

Austria Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Aust ...

n-American inventor who held numerous

patent A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an sufficiency of disclosure, enabling discl ...

s. He worked for

Zenith Electronics Zenith Electronics, LLC, is an American research and development company that develops ATSC and digital rights management technologies. It is owned by the South Korean company LG Electronics. Zenith was previously an American brand of consumer e ...

, retiring as the company's Vice President and Director of Research. His work included developing early sound-based remote controls for televisions, which were the standard for 25 years until replaced by infrared (IR) remotes that could transmit more complex commands.

Achievements

Adler was born in

Vienna Vienna ( ; ; ) is the capital city, capital, List of largest cities in Austria, most populous city, and one of Federal states of Austria, nine federal states of Austria. It is Austria's primate city, with just over two million inhabitants. ...

in 1913, the son of Jenny (née Herzmark), a doctor, and Max Adler, a social theorist. He earned a Ph.D. in

Physics Physics is the scientific study of matter, its Elementary particle, fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge whi ...

from the

University of Vienna The University of Vienna (, ) is a public university, public research university in Vienna, Austria. Founded by Rudolf IV, Duke of Austria, Duke Rudolph IV in 1365, it is the oldest university in the German-speaking world and among the largest ...

in 1937. Following Austria's annexation by Nazi Germany in 1938, Adler, who was

Jew Jews (, , ), or the Jewish people, are an ethnoreligious group and nation, originating from the Israelites of ancient Israel and Judah. They also traditionally adhere to Judaism. Jewish ethnicity, religion, and community are highly inte ...

ish, left the country. He traveled first to

Belgium Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeas ...

, then to

England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...

, where he acted on the advice of friends, who recommended that he emigrate to the

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

. After emigrating to the United States, he began working at

in the research division in 1941. In his lifetime, Adler was granted more than 180 US

Contributions to the remote control

The invention Adler is best known for is the wireless

remote control A remote control, also known colloquially as a remote or clicker, is an consumer electronics, electronic device used to operate another device from a distance, usually wirelessly. In consumer electronics, a remote control can be used to operat ...

for

television Television (TV) is a telecommunication medium for transmitting moving images and sound. Additionally, the term can refer to a physical television set rather than the medium of transmission. Television is a mass medium for advertising, ...

s. While not the first remote control, its underlying

technology Technology is the application of Conceptual model, conceptual knowledge to achieve practical goals, especially in a reproducible way. The word ''technology'' can also mean the products resulting from such efforts, including both tangible too ...

was a vast improvement over previous remote control systems. The " Zenith Flash-Matic" remote control, invented by Eugene Polley, another

engineer Engineers, as practitioners of engineering, are professionals who Invention, invent, design, build, maintain and test machines, complex systems, structures, gadgets and materials. They aim to fulfill functional objectives and requirements while ...

Zenith The zenith (, ) is the imaginary point on the celestial sphere directly "above" a particular location. "Above" means in the vertical direction (Vertical and horizontal, plumb line) opposite to the gravity direction at that location (nadir). The z ...

, was the first wireless remote control, replacing the signal cable–based remote control devices, which never were a success. The Flash-Matic used directional

flashlight A flashlight (US English) or electric torch (Commonwealth English), usually shortened to torch, is a portable hand-held electric lamp. Formerly, the light source typically was a miniature incandescent light bulb, but these have been displaced ...

in the transmitter device, and photocells in the television set itself. One of the major shortcomings of this technology was that if the television set was exposed to direct sunlight, it could inadvertently trigger one of the remote control functions. The company president sent the engineers back to the drawing board to come up with a better solution. A system based on

radio waves Radio waves (formerly called Hertzian waves) are a type of electromagnetic radiation with the lowest frequencies and the longest wavelengths in the electromagnetic spectrum, typically with frequencies below 300 gigahertz (GHz) and wavelengths ...

was briefly considered but rejected because the signals could easily travel through walls and could inadvertently change the channel on a neighbor's television. Furthermore, the marketing people at Zenith desired a remote control which did not require batteries, as it was perceived at the time that if the battery died, the customer might think something was wrong with the television set itself. Adler's solution was to use sound waves to transmit signals to the TV. The first remote control he developed, the "Space Commander", used

aluminum Aluminium (or aluminum in North American English) is a chemical element; it has chemical symbol, symbol Al and atomic number 13. It has a density lower than that of other common metals, about one-third that of steel. Aluminium has ...

rods, analogous to

tuning fork A tuning fork is an acoustic resonator in the form of a two-pronged fork with the prongs ( ''tines'') formed from a U-shaped bar of elastic metal (usually steel). It resonates at a specific constant pitch when set vibrating by striking it ag ...

s, struck by hammers toggled by the buttons on the device, to produce high-frequency tones that would be interpreted to control functions on the television set. In the 1960s, Adler modified the remote control to use ultrasonic signals, a technology which went on to be used in television sets manufactured for the next 25 years, until replaced by infrared systems which could transmit more complex commands but required batteries to run.

Professional accomplishments

By the time of his retirement from Zenith, officially in 1982, Adler was the company's Vice President and Director of Research. He remained a technical advisor to Zenith until 1999. In 1980, Adler was awarded the

Edison Medal The IEEE Edison Medal is presented by the Institute of Electrical and Electronics Engineers (IEEE) "for a career of meritorious achievement in electrical science, electrical engineering, or the electrical arts." It is the oldest medal in this fi ...

. In 1997, Adler and Polley were jointly awarded an

Emmy Award The Emmy Awards, or Emmys, are an extensive range of awards for artistic and technical merit for the television industry. A number of annual Emmy Award ceremonies are held throughout the year, each with their own set of rules and award categor ...

by the

National Academy of Television Arts and Sciences The National Academy of Television Arts and Sciences (NATAS), also known as the National Television Academy until 2007, is an American professional service organization founded in 1955 for "the advancement of the arts and sciences of televisio ...

. Adler's last patent application was filed on October 6, 2006, for work on

touchscreen A touchscreen (or touch screen) is a type of electronic visual display, display that can detect touch input from a user. It consists of both an input device (a touch panel) and an output device (a visual display). The touch panel is typically l ...

technology.

Death

Robert Adler died in a

Boise, Idaho Boise ( ) is the List of capitals in the United States, capital and List of cities in Idaho, most populous city of the U.S. state of Idaho. As of the 2020 United States census, 2020 census, there were 235,685 people residing in the city. Loca ...

nursing home A nursing home is a facility for the residential care of older people, senior citizens, or disabled people. Nursing homes may also be referred to as care homes, skilled nursing facilities (SNF), or long-term care facilities. Often, these terms ...

heart failure Heart failure (HF), also known as congestive heart failure (CHF), is a syndrome caused by an impairment in the heart's ability to Cardiac cycle, fill with and pump blood. Although symptoms vary based on which side of the heart is affected, HF ...

at age 93.

References

External links

Inventor of the Week Archive - Robert Adler
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Robert Adler: Biography of the Inventor Who Made Life Easier for Couch Potatoes
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The Washington Post ''The Washington Post'', locally known as ''The'' ''Post'' and, informally, ''WaPo'' or ''WP'', is an American daily newspaper published in Washington, D.C., the national capital. It is the most widely circulated newspaper in the Washington m ...

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Robert Adler, 94; Engineer, Co-Inventor of TV Remote Control
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Obituary
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The Independent ''The Independent'' is a British online newspaper. It was established in 1986 as a national morning printed paper. Nicknamed the ''Indy'', it began as a broadsheet and changed to tabloid format in 2003. The last printed edition was publis ...

'', 22 February 2007
Obituary
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The Daily Telegraph ''The Daily Telegraph'', known online and elsewhere as ''The Telegraph'', is a British daily broadsheet conservative newspaper published in London by Telegraph Media Group and distributed in the United Kingdom and internationally. It was found ...

'', 13 March 2007
Obituary and Archive of American Television interview descriptionBiography from IEEE
{{DEFAULTSORT:Adler, Robert 1913 births 2007 deaths 20th-century American businesspeople Jewish emigrants from Austria after the Anschluss to the United States Emmy Award winners Engineers from Vienna IEEE Edison Medal recipients 20th-century American inventors