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Topic: Compatible sideband transmission

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	Narrow bandwidth, compatible single sideband (CSSB) transmission system, and three tone generator used therein - ...
		The method of claim 1, wherein the amplitude of the second order sideband and the extent of reduction of the carrier level with respect to the level of the first order sideband are substantially directly proportional to the square of the first order sideband level for all modulation levels.
		The method of claim 10, wherein the amplitude of the second order sideband and the extent of reduction of the carrier level with respect to the level of the first order sideband are substantially directly proportional to the square of the first order sideband level for all modulation levels.
		The means of claim 14, wherein the amplitude of the second order sideband and the extent of reduction of the carrier level with respect to the level of the first order sideband are substantially directly proportional to the square of the first order sideband level for all modulation levels.
	www.freepatentsonline.com /3952251.html (4955 words)

	Patents in Class 381/16
		A multiple signal carrier transmission apparatus and method for broadcasting stereo sounds to an audio output device uses three related carrier frequencies on which are modulated the sum of first and second stereo channel signals and the...
		A method for generating a compatible AM quadrature stereo wave by delivering a modulated carrier with in-phase sidebands generated by a first combination of two signals, and quadrature sidebands generated by a second combination of the s...
		The signal as transmitted is a compatible AM stereophonic signal with amplitude directly proportional to the monophonic signal 1+L+R. The instantaneous phase angle is the quadrature phase angle modified in that high level, high frequenci...
	www.freepatentsonline.com /CCL381-16.html (1914 words)

	Zenith: HDTV (Site not responding. Last check: 2007-11-03)
		In the digital VSB transmission system described here, there is a flexibility of transmitting any one of five different digital VSB modes (2, 4, 8, 8-trellis, and 16), with the data rate dependent upon the number of discrete levels and whether trellis coding is used.
		The transmission segment is compatible with the 188-byte MPEG-2 data packet standard, commonly used throughout the world (including the U.S. DTV standard).
		In the VSB transmission system, however, sync and timing recovery is performed with a narrowband PLL using the segment sync signal, independently of the data.
	www.zenith.com /sub_hdtv/hdtv_papers_atsc_system.html (8205 words)

	Compatible sideband transmission Information - Compatible sideband transmission
		Compatible sideband transmission is usually single-sideband (SSB) amplitude-modulation-equivalent (AME) transmission consisting of the emission of the carrier plus Compatible sideband transmission the upper sideband.
		The field of electronics is the study and use of systems that operate by controlling the flow of electrons or other electrically charged particles in devices such as thermionic valves and semiconductors.
		The study of new semiconductor devices and their technology is sometimes considered as a branch of physics.
	www.inanot.com /Ina-Electronics_Topics_Co_-_Cz-/Compatible_sideband_transmission.html (144 words)

	EP0326435 (Site not responding. Last check: 2007-11-03)
		The high frequency component is attenuated and superimposed on the analog version of the additional data, with the attenuation selected so that the difference in adjacent levels of the analog version of the data is greater than the sum of the peak amplitude of the attenuated component and the expected noise on the channel.
		The effect of multipath transmission is minimized by using the slowest possible horizontal scan rate of the transmitted signal, which places any echoes as close as possible to the main signal.
		The system of claim 16 further comprising a receiver compatible with said high-definition television system, said receiver comprising a frame store and means for displaying the received image at a scanning standard different from that of said transmission means.
	swpat.ffii.org /pikta/txt/ep/0326/435 (7165 words)

	Transmission
		In standard broadcast transmissions the speech and music are used to modulate the carrier, instead of a switch or key.
		The upper sideband frequencies extend to 5 kHz higher than the carrier, and the lower sideband frequencies extend to 5 kHz lower than the carrier.
		The advantage of this so-called "negative transmission" is that noise pulses interfering with the transmitted signal increase the carrier amplitude toward fl, which makes the noise less obvious in the picture.
	www.danalee.ca /ttt/transmission.htm (8479 words)

	Rec Fresh : Article 'Electrical length' (Site not responding. Last check: 2007-11-03)
		Of a transmission medium, its length expressed as a multiple or submultiple of the wavelength of a periodic electromagnetic or electrical signal propagating within the medium.
		Note 1: The wavelength may be expressed in radians or in artificial units of angular measure, such as degrees.
		Of a transmission medium, its physical length multiplied by the ratio of (a) the propagation time of an electrical or electromagnetic signal through the medium to (b) the propagation time of an electromagnetic wave in free space over a distance equal to the physical length of the medium in question.
	www.rec-fresh.net /DisplayArticle60825.html (443 words)

	Compatible sideband transmission: Definition and Links by Encyclopedian.com
		Compatible sideband transmission: Independent sideband transmission in which the carrier is deliberately reinserted at a lower level after its normal suppression to permit reception by conventional AM receivers.
		Note: Compatible sideband transmission is usually single-sideband (SSB) amplitude-modulation-equivalent (AME) transmission consisting of the emission of the carrier plus the upper sideband.
		Post a link to definition / meaning of " Compatible sideband transmission " on your site.
	www.encyclopedian.com /co/Compatible-sideband-transmission.html (105 words)

	Voice Link Over Spread Spectrum Radio
		In addition to providing phase insensitive data transmission the format also makes clock recovery at the receiver relatively easy, as unlike NRZ even a continuous stream of diphase encoded 0's results in many start and finish data cell transitions.
		The signal is despread by correlating with a pseudo-random code identical to and in synchronism with the code used to spread the carrier at the transmitter.
		The BPSK frequency spectra is similar to that of a double sideband suppressed carrier and as for DSBSC, carrier recovery is required to demodulate the signal.
	www.tapr.org /ss_g1pvz.html (6563 words)

	Shop Fresh : Article 'Amplitude modulation' (Site not responding. Last check: 2007-11-03)
		Sidebands are also what cause interference to adjacent channels, and therefore they must be suppressed by filters, either before or after modulation (or often both).
		Conventional Amplitude modulation transmits a lower sideband, a carrier, and an upper sideband.
		Single-sideband transmission is usually found in shortwave radio bands, with some stations utilizing sidebands to reduce noise in the signal.
	www.shop-fresh.net /DisplayArticle72040.html (671 words)

	Telecom Dictionary A: Phone Service Definitions
		In data transmission, a function invoked by a sending station to cause the recipient to discard or ignore all bit sequences transmitted by the sender since the preceding flag sequence.
		A signal transmitted in lieu of the normal signal to maintain transmission continuity and to indicate to the receiving equipment that there is a transmission interruption located either at the equipment originating the AIS signal or upstream of that equipment.
		A signal transmitted in lieu of the normal signal to maintain transmission continuity and indicate to the receiving terminal that there is a transmission fault located either at the transmitting terminal or upstream of the transmitting terminal.
	www.higginsinternational.com /Definitions/telecom_dictionary_a.html (15338 words)

	WEFAX Uplink Processor / Satellite/RF Meteorological / Products / Avtec.com - the Web site of Avtec Systems, Inc.
		The WEFAX Transmission Processor accepts, processes and AM modulates meteorological product files transmitted to the unit, readying the data for satellite or terrestrial transmission via analog WEFAX broadcast.
		Image processing and transmission generally occurs on a schedule controlled by an integrated task scheduler, which reads ASCII schedule inputs and manages the order, frequency and routing of transmissions.
		The WEFAX Transmission Processor generates two independent AM modulated signals with an accuracy of 10 ppm, which are output electrically using a multi-channel Digital-to-Analog Converter (DAC) integrated into the unit.
	www.avtec.com /products/satellite_rf_meteorological/wefax_uplink_processor (601 words)

	[No title] (Site not responding. Last check: 2007-11-03)
		It is called lower sideband because the lower sideband is the only sideband transmitted, since the upper sideband is suppressed C.
		The upper sideband is greatly attenuated as compared with the carrier C.
		The upper sideband is greatly attenuated as compared with the lower sideband D.
	www.arrl.org /arrlvec/El3-2000.txt (17129 words)

	ePanorama
		This is the transmission of short or long pulses of RF energy to form dots and dashes that will correspond to some code such as the Morse Code, sometimes referred to as interrupted continuous wave (ICW).
		In trunked radio system every radio on the system 'listens' on a control channel, that is a data transmission giving the radios all their instructions.When a call is received, or made, the controlling data transmission tells the radios who wish to speak to each other which channel they need to switch to.
		Transmission line that is carefully chosen and neatly run by an installer who knows what he is doing will reward the customer with clear, distortion free color TV reception.
	www.hut.fi /Misc/Electronics/radio.html (12724 words)

	Adventures in CyberSound: 2500 Years of Communications History : Part 2 : 1900 to the present day (Site not responding. Last check: 2007-11-03)
		Having a transmission radius of 100 miles, it is the first to employ the new long wavelength technology.
		The National Television Systems Committee (NTSC) of the US develops a set of compatible technical standards for fl and white and color transmissions, making it possible to receive color broadcasts on fl and white sets The system is adopted in America, Japan, and many other countries in the Americas.
		In Japan, the Matsushita multiplex adaptor is used to receive transmission of television programs broadcast in two languages at once, giving the viewer the option of watching a foreign film in the original language or in Japanese.
	www.acmi.net.au /AIC/TV_TL_COMP_2.html (13746 words)

	TUARC K3TU - Digital Voice
		Amplitude modulation (AM) was devised in the 1920s, frequency modulation (FM) in the 1930s, and single sideband (SSB), actually pioneered by Amateur Radio experimenters, also in the 1930s.
		The original 64 Kb/sec speed sampled voice signal was compressed by the AMBE-1000 device to 2400 b/sec with 1200 b/sec of Forward Error Correction (FEC) for a transmit data rate of 3600 b/sec.
		A suitable replacement for the AMBE-1000 is the half-duplex AMBE-2020 device (a fully pin compatible full-duplex device is the AMBE-2000), based on the Texas Instruments TMS320C54xx processor.
	www.temple.edu /k3tu/digital_voice.htm (521 words)

	NTSC History (Site not responding. Last check: 2007-11-03)
		In 1938, the RMA Television Standards Committee added proposals for de transmission ot' brightness, horizontal polarization, detailed specifications of the synchronizing,, signals (including equalizing pulses), and most important, vestigial sideband transmission which thereby increased the available video bandwidth from 2.5 to 4.2 MHz.
		The new science and technology of compatible color were laid out in all their confusing glory before 315 NTSC Committee, Panel, and Subpanel members.
		The dot-sequential system of RCA was the starting point for compatible color, but refinements from other sources proved essential and these were introduced after lengthy discussion and field tests.
	www.williamson-labs.com /ntsc-fink.htm (3377 words)

	Single Sideband Radio
		This is why long distance transmission of radio waves over salt water has long been known to be very efficient.
		Once a good quality Single Sideband receiver (Unfortunately, the Elecraft K2 only covers the Ham bands and receipt of weather FAX is not possible with this radio.) and computer are on board, a logical extension is to use the equipment to receive the latest weather information.
		A schedule of transmission frequencies and times is available on the web.
	www.geocities.com /Yosemite/Forest/2727/flicka_ssb.html (3620 words)

	Welcome to Inova Semiconductors
		Using Inova Semiconductors’ GigaSTaR® transmission technology, the APIX® chip family enables optimum connection of high-resolution displays and cameras to automotive Car PCs, using only two wires.
		Alternatively a separate feedback path may be activated to use fiber optic cables, for example.
		A bi-directional sideband data channel, which allows for control of CMOS camera sensors or display settings, is also provided.
	www.inova-semiconductors.de /en/products_01.htm (165 words)

	[No title]
		14 PEP is defined as the average power supplied to the antenna transmission line by a transmitter during one radio frequency cycle at the crest of the modulation envelop taken under normal operating conditions.
		Those opposing sub- banding claim that much of the CW and data sub- bands in other amateur allocations are underutilized, and that many other nations are eliminating their sub- bands.
		In addition, because we are permitting amateur stations to transmit on 5 discrete frequencies and limiting the transmission mode to single sideband only, dividing the band into smaller sub- bands to be used for other emission types is not practical or necessary.
	hraunfoss.fcc.gov /edocs_public/attachmatch/FCC-03-105A1.txt (9996 words)

	ePanorama
		transmission lines have a characteristic impedance (zo) with which they should be driven and terminated; and, in video, the most popular is the 75 ohm coaxial cable.
		Normally video transmission is done using 75 ohm coaxial cables, but unshielded twisted pair or UTP cable is a very inexpensive interconnection when compared to a coaxial cable connection.
		Adjustable LNB Power Supply Is DiSEqC Compatible - This circuit provides a digitally switchable 13V or 17V for the low-noise block (LNB) typically found in satellite receivers at the antenna feedhorn.
	www.epanorama.net /links/videocircuits.html (8404 words)

	AM Stereo (Site not responding. Last check: 2007-11-03)
		For reference, sidebands are the frequencies produced when audio is mixed, or modulated, with a high frequency RF carrier.
		Please note this is not the same as single sideband transmission as used in many 2 way gear.
		Since all the stereo information in the Kahn transmission is contained in the sidebands, this is better known as a frequency separated system, as the sideband frequencies differ from the carrier at an audio frequency rate.
	www.wbdhradio.com /html/am_stereo.html (1777 words)

	Zenith: About: Corporate History (Site not responding. Last check: 2007-11-03)
		Zenith remained committed to audio engineering related to television; Zenith engineers co-developed the multichannel television sound (MTS) transmission system adopted by the industry for stereo TV broadcasts (1984), and received an Emmy for pioneering work on development of MTS stereo TV (1986).
		Zenith was the first to propose a partially digital signal, pioneered the use of the so-called "taboo" broadcast channels for the transition to HDTV and was the first to use computer-friendly progressive scanning.
		Zenith developed the VSB (vestigial sideband) digital transmission system adopted in December 1996 by the Federal Communications Commission as part of the ATSC (Advanced Television Systems Committee) digital television broadcast standard.
	www.zenith.com /sub_about/about_corp_history.html (1301 words)

	Appendix B: EUTELSAT Headquarters
		The transmission data rate will be adapted to the available margin by a low rate feedback link from the receiver (in essence, bit error rate monitoring at the receiver).
		The FLASH TV concept is compatible with a 36 MHz transponder and terrestrial transmission, and thus would have much broader applicability in business, government, news gathering and entertainment.
		This activity is concerned with satellite transmission only within the broader context of transmission and networking technology.
	www.wtec.org /loyola/satcom/ab_eut.htm (2189 words)

	Books For Designing RF and Wireless Circuitry
		Schaum's solved-problem guides are compatible with any classroom textbook, and are so complete that they are the perfect tool for graduate or professional examination reviews.
		Topics include transmission line theory, planar transmission lines, circuit components, microwave system components, solid-state devices, signal mixers, diode frequency multipliers, active mixers, FET resistive mixers, and active frequency multipliers.
		The software on a 3.5" disk is compatible with either IBM or Macintosh, and uses the Excel spreadsheet to find and evaluate nearly all the 382 equations described in the text.
	www.sedelmeier.com /wireless_books.htm (1667 words)

	IP Workshop - Gerovac/Solomon: Protect Revenues, Not Bits
		A header structure also must support digital transmission of video sideband information (closed captioning and secondary audio programming) as well as potential new types of information (image coding parameters and digital copyright signatures).
		Given the variety of applications and transmissions environments envisioned, the header must be flexible both in its design and use.
		Identifier-to-integer mappings are established at the time of transmission, either though bi-directional negotiation or though implied assignment by including both direct- and indirect-reference options together in the same header on a periodic basis.
	www.cni.org /docs/ima.ip-workshop/Gerovac.Solomon.html (4757 words)

	[No title]
		The transmissions on 1548 kHz are beamed at 245 degrees towards Balkan.
		"Cuba's jamming of satellite transmissions is illegal and interferes with the free and open flow of international communications," said Kenneth Y. Tomlinson, chairman of the Broadcasting Board of Governors, the federal agency that oversees all U.S. non-military broadcasting.
		In the course of the discussion, the Chinese engineers, after congratulating the government on the climate of peace reigning in the country, further expressed their satisfaction at government's project to set up rural radios in all provincial headquarters of the country.
	www.worldofradio.com /dxld3128.txt (12017 words)

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