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Topic: Automatic Picture Transmission

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	Automatic picture display position adjusting circuit and picture display apparatus using the same - Patent 6421092
		3 is a block diagram of an automatic picture display position adjusting circuit in accordance with the second exemplary embodiment of the present invention.
		4 is a flowchart explaining a function of the automatic picture display position adjusting circuit in accordance with the second exemplary embodiment of the present invention.
		The switching means which switches the state of the automatic picture display position adjustment between permission and prohibition and the memory means, do not have to be incorporated in the microcomputer 6, but both could be separately employed as independent means from microcomputer 6.
	www.freepatentsonline.com /6421092.html (2416 words)

	Automatic Transmission System - Picture - MSN Encarta
		Automatic Transmission System - Picture - MSN Encarta
		The automatic transmission is one of the key components of an automobile.
		Located just behind the engine, the transmission changes the speed and power ratios between the engine and the driving wheels of a vehicle.
	encarta.msn.com /media_461520502/Automatic_Transmission_System.html (43 words)

	Automatic Picture Transmission (APT)
		Below is a checklist of Automatic Picture Transmission (APT), as well as other APT-like antenna postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.).
		Automatic Picture Transmission is a low-resolution analog transmission of AVHRR data from polar-orbiting satellites.
		APT was initiated with the TIROS-8 satellite launched in December 1963.
	www.cira.colostate.edu /ramm/hillger/APT.htm (259 words)

	Automatic Transmissions A Short Course on How They Work
		The modern automatic transmission consists of many components and systems that are designed to work together in a symphony of clever mechanical, hydraulic and electrical technology that has evolved over the years into what many mechanically inclined individuals consider to be an art form.
		The transmission oil pump (not to be confused with the pump element inside the torque converter) is responsible for producing all the oil pressure that is required in the transmission.
		If a late model transmission (computer-controlled transmissions started becoming popular in the early '90s) is not shifting properly, it is often the result of a computer sending incorrect signals due to a faulty sensor, or the transmission is not reacting to the computer command because of a bad connection or defective solenoid pack.
	www.familycar.com /transmission.htm (5276 words)

	APT
		Automatic Picture Transmission (APT) is used by Satellites to enable a fully automated unattended reception of the transmitted pictures.
		At the start of the transmission a start tone is transmitted for some seconds, which is recognised by the receiving unit.
		At the end of the transmission a stop tone is sent that switches the receiving unit back to standby mode.
	www.hffax.de /html/hauptteil_beginners_guide3.html (335 words)

	Automatic Transmissions: What Makes Them Work (Site not responding. Last check: 2007-10-27)
		The key to the modern automatic transmission is the torque converter.
		Gear shifting in an automatic transmission is very similar to the action taken while riding your mountain bike -- except that a series of valves, sensors, and other components take the place of your brain, deciding when to upshift and downshift to a larger or smaller gear.
		The transmission is connected to the wheels via an output shaft, which meshes to the axles in a variety of ways, depending on your car's design.
	www.edmunds.com /ownership/techcenter/articles/43836/article.html (1750 words)

	Search Encyclopedia.com (Site not responding. Last check: 2007-10-27)
		transmission transmission, in automobiles, system of parts connecting the engine to the wheels.
		A radio wave acts as a carrier of information-bearing signals; the information may be encoded directly on the wave by periodically interrupting its transmission (as in dot-and-dash telegraphy) or impressed on it by a process c...
		automatic tuning control automatic tuning control (ATC), method or device to keep a radio or television receiver automatically tuned to a desired frequency or channel.
	www.encyclopedia.com /searchpool.asp?target=Automatic+Picture+Transmission (597 words)

	Fiero TH440/4T60 Automatic Transmission Conversion
		Inside the transmission power is transferred from the output of the torque converter to the input of the gears and clutches by two sprockets and a drive chain.
		Unfortunately the transmission I had obtained was missing its ID tag which didn't seem to be a problem until I realized just how many drive ratio variations there were and the importance of knowing which one I had.
		After the transmission is in and the car is safe to drive, travel 10 miles or more on the freeway, counting mile markers, and determine the percentage of inaccuracy in the speedometer.
	spacecoastfieros.com /tech/440-4T60/index.html (4368 words)

	Looking at Earth From Space - a
		TIROS Automatic Picture Transmissions (APT) are derived from this instrument.
		As applied to APT, an audible tone of 2400 Hz is amplitude modulated, with the maximum signal corresponding to light areas of a photograph, the minimum levels fl, and the intermediate strengths various shades of qray.
		Transmission of a continuously variable signal as opposed to a discretely variable signal.
	www.grc.nasa.gov /WWW/K-12/TRC/laefs/laefs_a.html (3173 words)

	Transmission (Site not responding. Last check: 2007-10-27)
		Synchronized transmissions began to appear in the 1930s, and incorporated synchronizers that were capable of bringing the countershaft up to speed, and aligning the gears in phase, prior to engagement.
		There are two main transmission designs in common use - the manual transmission, an entirely mechanical gearing system, and the automatic transmission, which uses hydraulics as well as mechanical gearing, and partially automates the gear selection process.
		Recent developments have included electronically controlled "clutchless-manuals" which technically resemble traditional manual transmissions but from a driver perspective work like an automatic, and continuously variable transmissions which rather than providing a limited set of "ratios", allow the relationship between the speed of the engine and the speed of the wheels to be varied continuously.
	www.websters-online-dictionary.org /tr/transmission.html (4704 words)

	Automatic Picture Transmission - Wikipedia, the free encyclopedia
		The Automatic Picture Transmission (APT) system on the National Oceanic and Atmospheric Administration (NOAA) satellites of the United States provides a reduced resolution data stream from the Advanced Very High Resolution Radiometer (AVHRR) instrument.
		It transmits the data continuously as an analogue broadcast that can be received in real-time by relatively unsophisticated, inexpensive ground station equipment while the satellite is within radio range.
		Advances in communications technology will enable a transition to a new digital system - Low Rate Picture Transmission (LRPT) - in the early years of the new century.
	en.wikipedia.org /wiki/Automatic_Picture_Transmission (209 words)

	APT - The Automatic Picture Transmission System
		The Automatic Picture Transmission (APT) system on the NOAA satellites of the USA provides a reduced resolution data stream from the AVHRR instrument.
		APT data are transmitted continuously as an analogue signal using amplitude modulation of a 2400 Hz carrier.
		APT will not be transmitted by the Metop satellites to be flown by EUMETSAT from 2005.
	www.eumetsat.int /en/area2/cgms/ap9-25.htm (432 words)

	NOAA IJPS Data and Products
		APT services and subsystems were initially designed to broadcast direct readout satellite imagery to low-cost ground receiving equipment.
		APT signals from U.S. satellites are transmitted on 137.50 or 137.62 MHz FM transmitters as a 2.4 KHz DSB-AM subcarrier.
		APT data are acquired whenever a NOAA POES passes within range of a ground station (at least four times in a 24 hour period).
	projects.osd.noaa.gov /IJPS/product.htm (797 words)

	NSSDC Master Catalog Display: Experiment (Site not responding. Last check: 2007-10-27)
		The Nimbus 1 Automatic Picture Transmission (APT) system was a camera and transmitter combination designed to transmit local daytime, slow-scan television pictures of cloudcover conditions to properly equipped ground receiving stations on a real-time basis.
		The faceplate of the vidicon had reticle marks that appeared on the picture format to aid in relating the picture to its geographical position on the earth's surface.
		APT data are primarily intended for operational use within the local APT acquisition station and are generally not available for distribution.
	nssdc.gsfc.nasa.gov /database/MasterCatalog?sc=1964-052A&ex=2 (285 words)

	RS Glossary (Site not responding. Last check: 2007-10-27)
		As applied to APT, an audible tone of 2400 Hz is amplitude modulated, with the maximum signal corresponding to light areas of a photograph, the minimum levels fl, and the intermediate strengths various shades of gray.
		Transmission (analog video format) consists of an amplitude-modulated audible tone that can be displayed as an image on a computer monitor when received by an appropriate ground station.
		APT images are transmitted by polar-orbiting satellites such as the TIROS-N/NOAA satellites, Russias METEOR, and the Chinese Feng Yun, which orbit 500-900 miles above the Earth, and offer both visible and infrared images.
	www.casde.unl.edu /vn/glossary/earth_a.htm (2498 words)

	NSSDC Master Catalog Display: Experiment (Site not responding. Last check: 2007-10-27)
		The TIROS 8 Automatic Picture Transmission (APT) subsystem was a camera and transmitter combination designed to test the feasibility of transmitting local daytime pictures of cloudcover conditions to properly equipped ground receiving stations on a real-time basis.
		The camera used a 108-deg wide-angle f/1.8 objective lens, with a focal length of 5.7 mm, and was mounted on the satellite baseplate, with its optical axis parallel to the spacecraft spin axis.
		The APT experiment successfully demonstrated the feasibility of using weather satellites to provide meteorologists with local cloudcover data on a near real-time basis requiring only the use of a photofacsimile machine and a relatively inexpensive antenna and receiver.
	nssdc.gsfc.nasa.gov /database/MasterCatalog?sc=1963-054A&ex=2 (284 words)

	WXSat - Software (Site not responding. Last check: 2007-10-27)
		Automatic picture transmission (APT) picture transmissions from the polar orbiting satellites (NOAA and Meteor) have no definite start as the satellites are, for all practical purposes, transmitting pictures continuously.
		Numerous software programmes written to decode weather satellite transmissions are available on the Internet of which WxSat (written by Christian H. Bock) is one of the more popular programmes available.
		Although automatic picture transmission (APT) picture transmissions produce grey-scaled images, WxSat can be configured to add "artificial" colour.
	home.telkomsa.net /jeanward/wxsat/software.htm (134 words)

	Homepage of Michael R. Lannan, Milwaukee School of Engineering
		A manual transmission usually has a set helical spur gears that are meshed together, by manually operating a lever, to give different gear ratios.
		In a manual transmission, you have a clutch that transfers the primary torque of the engine to the transmission.
		An automatic transmission doesn’t have this clutching mechanism (obviously).
	people.msoe.edu /~lannanm/TECH_automatictrans.html (895 words)

	APT - The Automatic Picture Transmission System (Site not responding. Last check: 2007-10-27)
		The Automatic Picture Transmission (APT) system on the NOAA satellites of the USA provides a reduced resolution data stream from the AVHRR instrument.
		APT data are transmitted continuously as an analogue signal using amplitude modulation of a 2400 Hz carrier.
		APT will not be transmitted by the Metop satellites to be flown by EUMETSAT from 2003.
	www.wmo.ch /web/sat/en/ap9-25.htm (432 words)

	Developing A Strategy for LRPT
		Using an analog format, the APT system transmits two spectral bands of imagery data (a visible and an infrared band during the day-side of the orbit, two infrared channels when in view of the dark side of the Earth) to users via two VHF transmitters operating at 137.5 MHz and 137.62 Mhz.
		APT users seem to have most of their difficulties in receiving APT signals when the satellite is at a 90 degree azimuth angle (to the East) to their antenna.
		Another problem with the current APT transmission link is in degradation of signal and data quality due to interference from pagers and local terrain (mostly from surrounding buildings in an urban environment).
	www.osdpd.noaa.gov /EBB/pubs/sympos/symp32.html (3515 words)

	GPN-2003-00026 - Automatic Picture Transmission (Site not responding. Last check: 2007-10-27)
		Automatic Picture Transmission (APT) enabled meteorologists to obtain immediate local area cloud pattern photographs when the Nimbus satellite was within a 1700-mile range of a receiving station.
		The APT subsystem pioneered on Nimbus 1, which was launched August 28, 1964, provided direct readout of nighttime and daytime cloud coverage.
		APT was part of three experiments performed on Nimbus 1, with the other experiments being Advanced Vidicon Camera Subsystem (AVCS) and High Resolution Infrared Radiometer (HRIR).
	grin.hq.nasa.gov /ABSTRACTS/GPN-2003-00026.html (132 words)

	Picture (Site not responding. Last check: 2007-10-27)
		A typical example of some state or quality; "the very picture of a modern general"; "she was the picture of despair".
		Picture A model, or beau-ideal, as, He is the picture of health; A perfect picture of a house.
		An image (from Latin imago) or picture is a visual reproduction of an object or a person, either by using optics (using a camera, mirror, refraction, telescope, microscope, etc.), or by artistic methods such as drawing or painting.
	www.websters-online-dictionary.org /pi/picture.html (3372 words)

	Transmission Swap (Site not responding. Last check: 2007-10-27)
		Here is a picture of the toploader and Tremec side by side.
		One of the hardest parts of the conversion from an automatic was getting all the necessary clutch linkage.
		The toploader was a direct replacement for the C4 automatic.
	members.aol.com /eevans/transmission.html (164 words)

	WEFAX - The International Analogue Image Transmission System
		WEFAX is a standard data transmission specification used by operators of geostationary meteorological satellites to transmit satellite images and other data in analogue form to low-cost user stations.
		The format is a derivative of the Automatic Picture Transmission (APT) originally developed for transmission from the polar satellites of the USA.
		Although the transmissions are in analogue format throughout, digital header information is encoded in the analogue signal at the start of the signal, so that user software can determine which image is being transmitted.
	www.eumetsat.int /en/area2/cgms/ap9-24.htm (682 words)

	Automatic Overdrive Transmission Swap
		Some high performance transmission folks frown on using lockup type torque converters in high horsepower dragstrip applications, but they are very practical for street use, and many folks are quite successful in drag racing their later model automatic equipped GM vehicles.
		When performing any transmission swap, you need to consider the overall length of the transmission, the length of the main case, the length of the extension housing, the location of the mounting pad relative to the bellhousing face, and the mounting pattern of the transmission mount.
		The transmissions use the same style of shifter hookup on the transmission, the transmissions are roughly the same width, and the location of the shifter hookup relative to the front of the transmission is within
	www.rowand.net /Shop/Tech/AutomaticOverdriveTransmissionSwap.htm (7788 words)

	NOAA KLM USER'S GUIDE Section 4.2
		A visible channel is used to provide visible APT imagery during daylight, and one IR channel is used constantly (day and night).
		Table 4.2.2-1 summarizes the pertinent APT transmission characteristics.
		The MIRP inserts calibration and telemetry data for each of the selected APT channels being transmitted, and AM modulates the 2400 Hz subcarrier, corresponding to the light and dark areas seen by the instrument, with the 8 Most Significant Bits (MSB) of the 10-bit data.
	www2.ncdc.noaa.gov /docs/klm/html/c4/sec4-2.htm (735 words)

	Satellites reception
		The APT signal includes a synchronisation pulse in raster lines (called telemetry) that is scanned from Earth, this is the information displayed on the left and right of each picture.
		The APT signal is easily recognizable to it modulated frequency (FM) and carrier tonality ranging between 1500-2500 Hz.
		The sound of their transmission is thus slightly different from the other weather satellites like on this record of a RESURS 01-N4 signal with an IOC of 382.
	www.astrosurf.org /luxorion/qsl-satellites-reception2.htm (2756 words)

	What are Polar Orbital Weather Satellites
		The APT system uses a scanner rotating perpendicular to the satellites orbital direction to make a one line scan of a section of earth.
		The USA satellite system was designed to send two pictures side by side, the first picture is a visible spectrum scan during day passes, and an infrared scan at night.
		All of the APT satellites transmit an analog stream of data continually amplitude modulated on an frequency modulated carrier, in the range of 137 MHz.
	home.att.net /~duffingl/sat_fact.html (552 words)

	Glossary of Terms (Site not responding. Last check: 2007-10-27)
		TIROS Automatic Picture Transmissions (APT) are derived from this instrument.
		As applied to APT an audible tone of 2400 Hz is amplitude modulated, with the maximum signal corresponding to light areas of a photograph, the minimum levels fl, and the intermediate strengths various shades of gray See grayscale.
		As applied to APT the radio signal from the satellite is broadcast on an FM transmitter and received on the ground on an FM radio receiver.
	asd-www.larc.nasa.gov /biomass_burn/glossary.html (16874 words)

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