ITT IDEAL COLOR 3794 HIFI (5433 14 88) YEAR 1983.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ITT IDEAL COLOR 3794 HIFI It's a 27 Inches (67Cm) color television with particular Audio Supersound Features.

It has a 6 Speakers Audio sound system and Hypersonic sound feature.The present invention relates to an improved feature of the generation of synthetic stereo signals from a monaural signal and more particularly relates to synthetic generation of sum and difference stereo signals of a type which provide useful stereo information to a stereo enhancement system. In many stereo sound systems the circuits merely amplify right and left channel signals and feed these to loudspeakers. In these systems and other stereo systems it is necessary that a stereo input be provided if a stereo output is to be produced. Generally such a stereo input is available either in the form of left and right stereo input signals, or, as in some broadcast systems, in the form of the sum (L+R) of left and right stereo signals and the difference (L-R) between such left and right stereo signals. In a common type of stereo signal broadcast system, left and right stereo signals are combined at the broadcast station before transmission. A sum signal (L+R) is modulated upon a main carrier, and a difference signal (L-R) is modulated upon a higher frequency sub-carrier. Generally the sub-carrier is weaker than the main carrier, and transmission of the stereo signals is frequently along multiple paths due to the bouncing of the FM transmission between or among buildings or other obstacles. This causes the difference signal transmitted on the weaker sub-carrier to be considerably weaker at a receiving station, varying in intensity, and fading in and out according to location of the receiver. When such a receiver is mounted in a moving vehicle, it may occur that the difference signal received is so weak as to be substantially useless. For such conditions some receivers are arranged to ignore the weak difference signal and to receive, process and transduce through its loudspeakers solely a monaural signal in the form of the sum (L+R).
Therefore, where the difference signal is too weak or absent, the listener will only be able to receive and hear a monaural sound. This is so even if the receiver should include effective and sophisticated stereo image enhancement circuitry, such as described in detail in my above identified co-pending application. Only in the presence of a stereo input will certain image processing circuits, such as the stereo enhancement system of my prior application, be able to perform the desired enhancement
In other situations only a monaural signal is produced, but stereo sound is desired. For example, when playing a monaural record in a stereo playback system, it would be desirable to provide both left and right stereo signals to the system amplifier, whether or not any enhancement circuitry is employed. So, too, when a vocalist or individual instrumentalist provides sound to only a single microphone, it may be desired to provide stereo sound from the single monaural signal.
Therefore it is desirable to enable a receiver, a playback system, a recording system, or any other sound system, to provide stereo sound even though but a single signal, a monaural signal, is available. 

Historically features like many tvs sets a stereo ssound decoder.

The transmission of stereophonic sound together with a conventional television picture transmission greatly enhances the realism and entertainment value of the program being transmitted. Various systems and apparatus have been proposed for such transmissions including various compatible subcarrier-type systems wherein left-plus-right (L+R) information is conveyed on the regular frequency-modulated sound channel of a composite television broadcast signal, and left-minus-right (L-R) information is conveyed on a subcarrier.

The present invention relates to a method of broadcasting two television audio signals for two channel and stereo operation. A first one of the channels may be termed the normal or regular channel, and the second channel may be termed the auxiliary channel. The invention also relates to a receiver to carry out the method.

It has previously been proposed to provide two audio carriers for three different modes of operation. In the first mode, only a single audio carrier is used, and only a single audio program is being radiated or broadcast, and received. In a second mode, two audio carriers are used in which the first audio carrier radiates program No. 1 and the second audio carrier, a program No. 2. Such a transmission may be used, for example, for synchronous transmission in two languages. The third mode operation is audio with stereo transmission, the first carrier radiating the sum signal R+L and the second carrier the difference signal L-R.

It is necessary to characterize the mode of transmission. Thus, it is necessary that the audio receiver, that is, the television (TV) receiver have available an identifying signal which identifies the mode of transmission so that the receiver may, automatically, switch to the specific mode of signal being received.

It has previously been proposed to transmit a second pilot frequency in the second audio channel, which is additional to the audio information itself, and which distinguishes between two channel operation (for example, in two languages) and stereo operation. This requires comparatively expensive filter arrangements in the receiver in order to filter out the additional pilot frequencies. In accordance with a different proposal, the characterization of the mode of transmission is effected by an amplitude modulated auxiliary carrier. The auxiliary carrier, upon two channel operation, is modulated with a first frequency, for example, 922.5 Hz and, in stereo operation, is modulated with a different frequency (982.5 Hz). The auxiliary carrier frequency is 31/2 times the line frequency and modulation is 70 percent. This system also requires expensive and carefully adjusted filters and decoded networks in the receiver.

It is an object of the present invention to provide a broadcasting method and system in which the mode of transmission can easily be decoding in the receiver.

ITT  IDEAL COLOR  3794  HIFI features 32 Programs preselection with PLL synthesizer Tuning system and remote.ITT color TV with frequency synthesized tuning system characterized by the use of a microcomputer (ITT MAA4001) and comprising: generating binary signals representing first and second digital tune words, said digital tune words representing a selected channel for a television tuning system which employs a frequency synthesizer system for establishing the tuning of the receiver. A programmable frequency divider counter is connected between the output of a reference oscillator and a phase comparator to which the output of the local oscillator in the tuner also is applied. The phase comparator output provides a tuning voltage for controlling the tuning of the local oscillator. A microprocessor is used to control the count of the programmable frequency divider and initially to set a count corresponding to the selected channel in a counter connected between the output of the local oscillator and the phase comparator. The tuning consists of three discrete time periods. First, a settling time to allow channel change transients to settle; second, a short period of forced search at a relatively rapid rate to insure proper tuning; and third, a slower rate of step-by-step correction to accomodate for station drift and the like during reception. This third time period is initiated either by the passage of a fixed length of time following the start of the forced search period or by sensing a preestablished number of changes of state in the output of the frequency discriminator during the forced/search period.


The same Tuning device unit was shared around bigger models therefore the remote control based around ITT SAA1250 was the same for all.

The set was preset to obtain the optional installation of a videotext systems ,French "Teletel" and "Antiope".......

The present invention relates to a transcoding system for changing primary matrixes having 12×10 dots into primary matrixes having 8×10 dots, and vice versa, in dynamically redefinable character and matrix videotext systems.

Alpha mosaic or matrix videotext systems are known, such as for instance, the French "Teletel" and "Antiope" systems or the British "Prestel" and "Ceefax" systems. As opposed to these systems, the Canadian "Telidon" system is an alpha geometrical graph showing which would not be likely to use the present invention.

Dynamically redefinable character and matrix videotext systems are known. For instance, such a system is described in the U.S. Pat. No. 4,290,062. In the character generator of the terminal units of each of these systems, a character shape RAM is associated with the usual ROM's. The terminal units may receive specific character shapes which are normally transferred to them through the videotext data transmission channel. These specific character shapes supplement the sets of character shapes which are already stored in the ROM's. Such systems are called "DRCS systems" (dynamically redefinable character set). Presently there are two types of DRCS structures. In one type, the primary matrixes have 8×10 dots, and, in the other type, they have 12×10 dots. With regard to DRCS systems, reference will be generally made to the paper of O. Lambert et al., published in the technical review "IEEE Transactions on Consumer Electronics", Vol. CE26, August 1980, pages 600-604, entitled "ANTIOPE AND D.R.C.S.".

Efforts are presently being made for defining a method for allowing the two DRCS structures to make compatible signal conversions with a minimum of distortion. A Swedish transcoding scheme called a "Common Coding Schemes for 8 and 12 Dot DRCS" was proposed at the CEPT videotext meeting held at Darmstadt on Mar. 25-27, 1981. However, utilization of such a conversion system seems to result in considerable distortions of the initial shapes.

 

Pictures are EXCELLENT !!.................Sound too.

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ITT Corporation (NYSE: ITT) is a global diversified manufacturing company with 2008 revenues of $11.7 billion. ITT participates in global markets including water and fluids management, defense and security, and motion and flow control. Forbes.com named ITT Corporation to its list of "America's Best Managed Companies" for 2008, and awarded the company the top spot in the conglomerates category.

,ITT's water business is the world's largest supplier of pumps and systems to transport, treat and control water, and other fluids. The company's defense electronics and services business is one of the ten largest US defense contractors providing defense and security systems, advanced technologies and operational services for military and civilian customers. ITT's motion and flow control business manufactures specialty components for aerospace, transportation and industrial markets.

In 2008, ITT was named to the Dow Jones Sustainability World Index (DJSI World) for the tenth time in recognition of the company's economic, environmental and social performance. ITT is one of the few companies to be included on the list every year since its inception in 1999.

The company was founded in 1920 as International Telephone & Telegraph. During the 1960s and 1970s, under the leadership of its CEO Harold Geneen the company rose to prominence as the archetypal conglomerate, deriving its growth from hundreds of acquisitions in diversified industries. ITT divested its telecommunications assets in 1986, and in 1995 spun off its non-manufacturing divisions, later to be purchased by Starwood Hotels & Resorts Worldwide.

In 1996, the company became ITT Industries, Inc., but changed its name back to ITT Corporation in 2006.



History

ITT was formed in 1920, created from the Puerto Rico Telephone Company co-founded by Sosthenes Behn.
 Its first major expansion was in 1923 when it consolidated the Spanish Telecoms market into what is now Telefónica.[
From 1922 to 1925 it purchased a number of European telephone companies. In 1925 it purchased the Bell Telephone Manufacturing Company of Brussels, Belgium, which was formerly affiliated with AT&T, and manufactured rotary system switching equipment. In the 1930s, ITT grew through purchasing German electronic companies Standard Elektrizitaetsgesellschaft (SEG) and Mix & Genest, both of which were internationally active companies. Its only serious rival was the Theodore Gary & Company conglomerate, which operated a subsidiary, Associated Telephone and Telegraph, with manufacturing plants in Europe.

In the United States, ITT acquired the various companies of the Mackay Companies in 1928 through a specially organized subsidiary corporation, Postal Telegraph & Cable. These companies included the Commercial Cable Company, the Commercial Pacific Cable Company, Postal Telegraph, and the Federal Telegraph Company.


International telecommunications

International telecommunications manufacturing subsidiaries included STC in Australia and Britain, SEL in Germany, BTM in Belgium, and CGCT and LMT in France. Alec Reeves invented Pulse-code modulation (PCM), upon which future digital voice communication was based. These companies manufactured equipment according to ITT designs including the (1960s) Pentaconta crossbar switch and (1970s) Metaconta D, L and 10c Stored Program Control exchanges, mostly for sale to their respective national telephone administrations. This equipment was also produced under license in Poznań (Poland), and in Yugoslavia, and elsewhere. ITT was the largest owner of the LM Ericsson company in Sweden but sold out in 1960.




1989 breakup

In 1989 ITT sold its international telecommunications product businesses to Alcatel, now Alcatel-Lucent. ITT Kellogg was also part of the 1989 sale to Alcatel. The company was then sold to private investors in the U.S. and went by the name Cortelco Kellogg. Today the company is known as Cortelco (Corinth Telecommunications Corporation, named for Corinth, MS headquarters). ITT Educational Services, Inc. (ESI) was spun off through an IPO in 1994, with ITT as an 83% shareholder. ITT merged its long distance division with Metromedia Long Distance, creating Metromedia-ITT. Metromedia-ITT would eventually be acquired by Long Distance Discount Services, Inc. (LDDS) in 1993. LDDS would later change its name to Worldcom in 1995.

In 1995, ITT Corporation split into 3 separate public companies:

* ITT Corp. — In 1997, ITT Corp. completed a merger with Starwood Hotels & Resorts Worldwide, selling off its non-hotel and resorts business. By 1999, ITT completely divested from ITT/ESI; however, the schools still operate as ITT Technical Institute using the ITT name under license.[1] Also in 1999, ITT Corp. dropped the ITT name in favor of Starwood.
* ITT Hartford (insurance) — Today ITT Hartford is still a major insurance company although it has dropped the ITT from its name altogether. The company is now known as The Hartford Financial Services Group, Inc.
* ITT Industries — ITT operated under this name until 2006 and is a major manufacturing and defense contractor business.
o On July 1, 2006, ITT Industries changed its name to ITT Corporation as a result of its shareholders vote on May 9, 2006.

Purchase of International Motion Control (IMC)

An agreement was reached on June 26, 2007 for ITT to acquire privately held International Motion Control (IMC) for $395 million. The deal was closed and finalized in September 2007. An announcement was made September 14, 2010, to close the Cleveland site.
Purchase of EDO

An agreement was reached September 18, 2007 for ITT to buy EDO Corporation for $1.7 billion. After EDO shareholders' approval, the deal was closed and finalized on December 20, 2007.


Purchase of Laing

On April 16, 2009, ITT announced it has signed a definitive agreement to acquire Laing GmbH of Germany, a privately held leading producer of energy-efficient circulator pumps primarily used in residential and commercial plumbing and heating, ventilating and air conditioning (HVAC) systems.


2011 breakup

On January 12, 2011, ITT announced a transformation to separate the company into 3, stand-alone, publicly-traded, and independent companies.


HISTORY OF Standard Elektrik Lorenz AG IN GERMAN:

Die Standard Elektrik Lorenz AG (heute Alcatel-Lucent Deutschland AG) ist ein Unternehmen der Nachrichtentechnik (früherer Slogan: SEL – Die ganze Nachrichtentechnik) mit Hauptsitz in Stuttgart. Zur Nachrichtentechnik zählen auch Informations- und Kommunikationstechnik, Telekommunikationstechnik (SEL war für die Röchelschaltung bekannt) und früher Fernmeldetechnik oder Schwachstromtechnik. Einen weiteren Geschäftsbereich hatte das Unternehmen in der Bahnsicherungstechnik, so wurden für die Deutsche Bundesbahn Relaisstellwerke und elektronische Stellwerke mit den dazugehörigen Außenanlagen (Signale, Gleisfreimeldeanlagen, Weichenantriebe) sowie die Linienzugbeeinflussung entwickelt und gebaut, welche auch bei ausländischen Bahnen Abnehmer fanden. Der Bereich gehört seit 2007 als Thales Transportation Systems GmbH (seit 02.2011 vorher Thales Rail Signalling Solutions GmbH) zum Thales-Konzern. Die bereits 1998 ausgegliederten Bereiche Alcatel Air Navigation Systems und SEL Verteidigungssysteme sind ebenfalls heute in Thales Deutschland beheimatet.
Fernseher Illustraphon 743 von 1957
„Goldsuper Stereo 20“ (1961)
Das Flaggschiff der erfolgreichen Schaub-Lorenz Kofferradios der sechziger Jahre: Touring 70 Universal
Erster Digitalfernseher der Welt (1983)

Bis 1987 gehörte SEL zusammen mit anderen auf dem Sektor Telekommunikation in anderen Ländern tätigen Schwesterfirmen zum US-amerikanischen Mischkonzern International Telephone and Telegraph (ITT). ITT verkaufte die Aktien-Mehrheit an den ITT-Telekommunikationsfirmen an die französische Compagnie Générale d’Electricité (CGE), die nach der Zusammenfassung mit den eigenen Telekommunikationsaktivitäten daraus die Alcatel N.V. bildete.

Die Standard Elektrik Lorenz AG wurde 1993 in Alcatel SEL AG umbenannt. Die Aktienmehrheit liegt mit über 99 % bei der Alcatel. Mit der Fusion von Alcatel und Lucent zu Alcatel-Lucent am 1. Dezember 2006 und der Neu-Firmierung beider Unternehmen in Deutschland zur Alcatel-Lucent Deutschland AG entfiel der Zusatz SEL.


Geschichte

Die beiden Stammfirmen des Unternehmens, die Mix & Genest AG und die Telegraphenbauanstalt von C. Lorenz, wurden 1879 bzw. 1880 gegründet. Das erste Patent von Mix & Genest datiert von 1883, das erste Patent von C. Lorenz ist aus dem Jahr 1902.

Das Unternehmen Mix & Genest war wesentlicher Teil der Standard Elektrizitäts-Gesellschaft (SEG), in die auch die Süddeutsche Apparatefabrik (SAF), die 1875 von F. Heller als "Friedrich Heller, Fabrik Elektrotechnischer Apparate" gegründet wurde, integriert wurde. Der technische Schwerpunkt von Mix & Genest bzw. SEG sowie der C. Lorenz AG war der klassischen Fernmelde- bzw. Funktechnik zuzuordnen. Die C. Lorenz AG baute in den 1920er und 1930er Jahren Großsender für den neu gegründeten Rundfunk.

1930 übernahm die International Telephone and Telegraph Company (ITT) die Aktienmehrheit der Mix & Genest AG und der C. Lorenz AG.

Die C. Lorenz AG positionierte sich mit der Übernahme der G. Schaub Apparatebau-Gesellschaft mbH im Jahr 1940 in der Entwicklung und Herstellung von Rundfunkempfängern. Ab dem Jahr 1950 wurden alle Geräte bei Schaub in Pforzheim gefertigt. 1952 wurde das Typenprogramm beider Unternehmen verschmolzen und der Lorenz-Radio-Vertrieb in die Firma Schaub integriert. Ab 1955 wurden die Geräte unter dem Namen Schaub-Lorenz vertrieben.

1956 wurde das Unternehmen SEG in Standard Elektrik AG umbenannt. Ebenfalls 1956 wurde ein Kabelwerk gegründet. Wesentlicher Motor für das 1957 gegründete Informatikwerk war Karl Steinbuch, der von 1948–1958 dem Unternehmen, zuletzt als Technischer Direktor und Leiter der Zentralen Forschung, angehörte.

1958 erfolgte die Vereinigung der Standard Elektrik AG mit der C. Lorenz AG zur Standard Elektrik Lorenz AG (SEL).

Die Standard Elektrik Lorenz AG übernahm 1961 die Graetz KG. Die Firmenteile Schaub-Lorenz und Graetz waren zusammen mit einem Bildröhrenwerk Bestandteil der Unternehmensgruppe Audio Video der SEL AG, die 1979 als Audio-Video-Elektronik in die ITT ausgegliedert wurde. Die Produkte, die unter anderem Fernsehgeräte, Radios, Autoradios, Kassettenrecorder, Weltempfänger und Lautsprecherboxen umfassen, wurden fortan unter dem Namen ITT Schaub-Lorenz vertrieben.

Versuche, auf dem neuen Gebiet der Raumfahrt-Elektronik Fuß zu fassen, waren auf folgende Produkte beschränkt:

* AZUR: Telemetrie/Telekommandogeräte
* Spacelab: Datenerfassung/Kommandoterminal.

SEL entwickelte zu Beginn der 1970er Jahre das Präzisionsanflugverfahren SETAC. Dieser Unternehmensbereich wurde im Jahre 1987 von der finnischen Firma Nokia übernommen.

1976 hatte SEL ein Grundkapital von 357 Mio. DM bei 33.000 Beschäftigten und einem Umsatz von 2,6 Mrd. DM.

1983 stellte S E L auf der Internationalen Funkausstellung Berlin 1983 mit dem ITT Digivision den weltweit ersten Fernseher mit digitaler Signalverarbeitung vor.

2003 wurden die Markenrechte am Namen Schaub Lorenz an die italienische General Trading SpA verkauft. Die neugegründete Schaub Lorenz International GmbH vertreibt seitdem unter dem alten Markennamen Schaub-Lorenz importierte Konsumelektronik aus dem unteren Preisbereich.

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