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Standard Telephones And Cables
Standard Telephones and Cables Ltd (later STC public limited company, plc) was a British manufacturer of telephone, telegraph, radio, telecommunications, and related equipment. During its history, STC invented and developed several groundbreaking new technologies including pulse-code modulation (PCM) and optical fibres. The company was founded in 1883 in London as International Western Electric by Western Electric, the Western Electric Company, shortly after Western Electric became the telephone equipment supplier for AT&T, the American Telephone and Telegraph Company (AT&T) in the United States. In 1925, Western Electric divested itself of all foreign operations and sold International Western Electric to International Telephone and Telegraph (ITT), in part to thwart antitrust actions by the American government. In mid-1982, STC became an independent company and was listed on the London Stock Exchange; for a time it was a constituent of the FTSE 100 Index. It was bought by Nortel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Company
A public company is a company whose ownership is organized via shares of share capital, stock which are intended to be freely traded on a stock exchange or in over-the-counter (finance), over-the-counter markets. A public (publicly traded) company can be listed on a stock exchange (listing (finance), listed company), which facilitates the trade of shares, or not (unlisted public company). In some jurisdictions, public companies over a certain size must be listed on an exchange. In most cases, public companies are ''private'' enterprises in the ''private'' sector, and "public" emphasizes their reporting and trading on the public markets. Public companies are formed within the legal systems of particular states and so have associations and formal designations, which are distinct and separate in the polity in which they reside. In the United States, for example, a public company is usually a type of corporation, though a corporation need not be a public company. In the United Kin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wireless
Wireless communication (or just wireless, when the context allows) is the transfer of information (''telecommunication'') between two or more points without the use of an electrical conductor, optical fiber or other continuous guided transmission medium, medium for the transfer. The most common wireless technologies use radio waves. With radio waves, intended distances can be short, such as a few meters for Bluetooth, or as far as millions of kilometers for NASA Deep Space Network, deep-space radio communications. It encompasses various types of fixed, mobile, and portable applications, including two-way radios, Mobile phone, cellular telephones, personal digital assistants (PDAs), and wireless networking. Other examples of applications of radio ''wireless technology'' include Global Positioning System, GPS units, garage door openers, wireless Mouse (computing), computer mouse, Keyboard (computing), keyboards and Headset (audio), headsets, headphones, radio receivers, satelli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telephony
Telephony ( ) is the field of technology involving the development, application, and deployment of telecommunications services for the purpose of electronic transmission of voice, fax, or data, between distant parties. The history of telephony is intimately linked to the invention and development of the telephone. Telephony is commonly referred to as the construction or operation of telephones and telephonic systems and as a system of telecommunications in which telephonic equipment is employed in the transmission of speech or other sound between points, with or without the use of wires. The term is also used frequently to refer to computer hardware, software, and computer network systems, that perform functions traditionally performed by telephone equipment. In this context the technology is specifically referred to as Internet telephony, or voice over Internet Protocol (VoIP). Overview The first telephones were connected directly in pairs: each user had a separate telephone wire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RMS Queen Elizabeth
RMS ''Queen Elizabeth'' was an ocean liner operated by Cunard Line. Along with the , she provided a weekly transatlantic service between Southampton in the United Kingdom and New York City in the United States, via Cherbourg in France. Built by John Brown and Company at Clydebank, Scotland, as ''Hull 552'', she was launched on 27 September 1938 and named in honour of Queen Elizabeth The Queen Mother, Queen Elizabeth, the wife of King George VI. Her design was an improvement of that of ''Queen Mary'', resulting in a vessel 12 feet longer and several thousand tons greater GRT, making her the largest passenger liner ever built for a record 56 years. She entered service in March 1940 as a troopship in the Second World War, and did not make her first commercial voyage as an ocean liner until October 1946. With the decline in popularity of the transatlantic route, both ships were replaced by the smaller, more economical ''Queen Elizabeth 2'', which made her maiden voyage in 1969. '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RMS Queen Mary
RMS ''Queen Mary'' is a retired British ocean liner that operated primarily on the North Atlantic Ocean from 1936 to 1967 for the Cunard Line. It is currently a hotel, museum, and convention space in Long Beach, California, United States. It is on the U.S. National Register of Historic Places and member of Historic Hotels of America, the official program of the National Trust for Historic Preservation. Built by John Brown & Company in Clydebank, Scotland, she was subsequently joined by in Cunard's two-ship weekly express service between Southampton, Cherbourg and New York. These "Queens" were the British response to the express superliners built by German, Italian, and French companies in the late 1920s and early 1930s. ''Queen Mary'' sailed on her maiden voyage on 27 May 1936 and won the Blue Riband that August; she lost the title to in 1937 and recaptured it in 1938, holding it until 1952, when the new claimed it. With the outbreak of World War II, she was converted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coaxial Cable
Coaxial cable, or coax (pronounced ), is a type of electrical cable consisting of an inner Electrical conductor, conductor surrounded by a concentric conducting Electromagnetic shielding, shield, with the two separated by a dielectric (Insulator (electricity), insulating material); many coaxial cables also have a protective outer sheath or jacket. The term ''coaxial'' refers to the inner conductor and the outer shield sharing a geometric axis. Coaxial cable is a type of transmission line, used to carry high-frequency Signal, electrical signals with low losses. It is used in such applications as telephone trunk lines, Internet access, broadband internet networking cables, high-speed computer bus (computing), data buses, cable television signals, and connecting Transmitter, radio transmitters and Radio receiver, receivers to their Antenna (radio), antennas. It differs from other shielded cables because the dimensions of the cable and connectors are controlled to give a precise, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microwave
Microwave is a form of electromagnetic radiation with wavelengths shorter than other radio waves but longer than infrared waves. Its wavelength ranges from about one meter to one millimeter, corresponding to frequency, frequencies between 300 MHz and 300 GHz, broadly construed. A more common definition in radio-frequency engineering is the range between 1 and 100 GHz (wavelengths between 30 cm and 3 mm), or between 1 and 3000 GHz (30 cm and 0.1 mm). In all cases, microwaves include the entire super high frequency, super high frequency (SHF) band (3 to 30 GHz, or 10 to 1 cm) at minimum. The boundaries between far infrared, terahertz radiation, microwaves, and ultra-high-frequency (UHF) are fairly arbitrary and differ between different fields of study. The prefix ' in ''microwave'' indicates that microwaves are small (having shorter wavelengths), compared to the radio waves used in prior radio technology. Frequencies in the micr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transmission (telecommunications)
In telecommunications, transmission (sometimes abbreviated as "TX") is the process of sending or propagating an Analog signal, analog or digital signal via a transmission medium, medium that is wired communication, wired, wireless, or fiber-optic communication, fiber-optic. Transmission system technologies typically refer to physical layer protocol duties such as modulation, demodulation, line coding, Equalization (communications), equalization, error control, bit synchronization and multiplexing, but it may also involve higher-layer protocol duties, for example, digitizing an analog signal, and data compression. Transmission of a digital message, or of a digitized analog signal, is known as data transmission. Examples of transmission are the sending of signals with limited duration, for example, a block or Network packet, packet of data, a phone call, or an email. See also *Radio transmitter References Telecommunications engineering {{telecom-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kolster-Brandes
Kolster-Brandes Ltd was a British manufacturer of radio and television sets based in Foots Cray, Sidcup, Kent that was American owned. History The company was a descendant of ''Brandes'', a Canadian company founded in Toronto in 1908. Brandes became part of AT&T AT&T Inc., an abbreviation for its predecessor's former name, the American Telephone and Telegraph Company, is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the w ... in 1922 and a British subsidiary ''Brandes Ltd'' was established in Slough, in 1924, to manufacture headphones.The Setmakers by Keith Geddes and Gordon Bussey () The company rapidly expanded producing a range of loud speakers and in 1928 moved to a former silk mill at Foots Cray. The company was renamed ''Kolster-Brandes Ltd'' after the American parent company merged with the Kolster Radio Corporation. In 1930 the company supplied 40,000 of its ''Masterpiece'' two-val ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foots Cray
Foots Cray is an area of South East London, England, within the London Borough of Bexley. Prior to 1965 it was in the historic county of Kent. It is located south-east of Sidcup, north of Orpington and north west of Swanley. History It took its name from Godwin Fot, a local Saxon landowner recorded in the Domesday Book of 1086, and from the River Cray that passes through the village. It lay on the old Maidstone Road (now bypassed by the A20 road) leading from London to north Kent. Until the 20th century, Foots Cray dominated the nearby, less ancient hill-top hamlet of Sidcup. The combined area was designated as the Urban District of Foots Cray in 1902. Soon, however, the two settlements' fortunes were reversed, as Foots Cray's traditional industries declined after the First World War, and Sidcup grew rapidly as a commuter town after a railway was built linking it to central London. In 1921 this change was reflected in the renaming of Foots Cray Urban District to Sidcup U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sosthenes Behn
Sosthenes Behn (January 30, 1884 – June 6, 1957) was an American businessman, and the founder of ITT. He held the rank of lieutenant colonel in the U.S. Army. Biography Early years Sosthenes Behn was born in the island of St. Thomas, then part of the Danish West Indies. His ancestry was Danish on his paternal side, and part French on his maternal side. His maternal grandfather was Sephardic Jewish. Behn served in the United States Army and was commissioned a captain, Signal Corps, on June 19, 1917. He later achieved the rank of Lieutenant Colonel, having served with distinction during World War I. Behn served with the American Expeditionary Force (AEF) in France until February 1919. He was given command of the 232nd Field Signal Battalion, Château-Thierry, Saint-Mihiel, Argonne. In recognition of his meritorious service during the war he was awarded the Distinguished Service Medal (DSM). Puerto Rico Telephone Company and ITT After his return from military service, Colon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ITT Corporation
ITT Inc., formerly ITT Corporation, is an American worldwide manufacturing company based in Stamford, Connecticut. The company produces specialty components for the aerospace, transportation, energy and industrial markets. ITT's three businesses include Industrial Process, Motion Technologies, and Connect and Control Technologies. ITT has over 10,000 employees in more than 35 countries and serves customers in more than 100 countries. The company's long-standing brands include Goulds Pumps, Cannon connectors, KONI shock absorbers and Enidine energy absorption components. The company was founded in 1920 as International Telephone & Telegraph. During the 1960s and 1970s, under the leadership of CEO Harold Geneen, the company rose to prominence as the archetypal Conglomerate (company), conglomerate, deriving its growth from hundreds of acquisitions in diversified industries. ITT divested its telecommunications assets in 1986. In 1995, the company sold off its hospitality portfoli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
