Beam Combiner Splitter

4-Way Balanced Splitter/Combiner $10.94 4-Way Balanced Splitter/Combiner OPEN HOUSE 1 IN x 4 OUT PASSIVE VIDEO HUB

2-port Rj45 Splitter/combiner - Gray 37133 $4.97 2-port Rj45 Splitter/combiner - Gray 37133

Morley Twin Mix ABY Switcher Splitter Combiner $79.99 Morley Twin Mix ABY Switcher Splitter Combiner

Morley Twin Mix Aby Switcher Splitter Combiner $79.99 Morley Twin Mix ABY Switcher Splitter Combiner

Artel Combiner/Splitter 80/20 For Vsgm VMCS282 $458.55 Artel Combiner/Splitter 80/20 For Vsgm VMCS282

Artel Combiner/Splitter 50/50 For Vsgm VMCS255 $458.55 Artel Combiner/Splitter 50/50 For Vsgm VMCS255

Channel Plus 2538 8Way BiDirectional Splitter / Combiner $29.22 The Model 2538 Eightway Splitter/Combiner is a bidirectional 8way splitter/combiner that provides a 1 GHz bandwidth and is ideal for antenna and coaxial cable operations. The splitter/combiner can be used for two applications. It can be used to split a signal from a source or combine signals from multiple sources onto one coax run.

ART SplitCom Pro 2 Way Mic Splitter / Combiner $35 ART SplitCom Pro 2 Way Mic Splitter / Combiner

Art Splitcom Pro 2 Way Mic Splitter / Combiner $35 ART SplitCom Pro 2 Way Mic Splitter / Combiner

Cisco 4 Channel Optical Splitter or Combiner Flexmod 15216CS4 $1068.43 Cisco 4 Channel Optical Splitter or Combiner Flexmod 15216CS4

Directed Electronics 14220 DBS Combiner/Splitter Kit $77.99 Combiner/splitter package for satellite TV and SIRIUS signals for runing into the home via a single cable. Combiner merges the signals together outside the house and the Splitter separates the signals inside the house. Includes 4 sets of cables and AC power adapter for the splitter. Combines Sirius and Direct Broadcast Satellite onto existing DBS cable (RG6) and splits signals into the home. Eliminates additional calbe run for customers with satellite TV already installed. Includes SR100C combiner SR100R splitter AC adapter and RG58 and RG6 cables.

Pico Macom MX-7 Signal Splitter/Combiner $32.99 216 MHz 3 dB - Insertion 5 dB - Insertion 54 MHz 54 MHz to 216 MHz 75 Ohm The Pico Macom MX-7 Signal Splitter Combiner low loss 7-channel mixing network is an extremely cost effective splitting or combining network for use in smaller MATV and SMATV systems. The user friendly and compact design facilitates easy installation. Individual channel tuning and attenuator controls provide accurate quick-andeasy setup or reconfiguration reducing system down time. MX-7 MX-7 Signal Splitter Combiner Passive 7 Channel VHF Pico Macom Pico Macom, Inc Signal Splitter/Combiner www.picomacom.com

Cables To Go 2-Port RJ45 Splitter/Combiner $12.99 1 x RJ-45 Male 1.44 oz 2 x RJ-45 Female 2-Port RJ45 Splitter/Combiner 3 37133 Cables To Go Gray Network Cable Adapter RJ-45 www.cablestogo.com

Channel Vision HS-3 6-Way Splitter/Combiner $18.98 This Splitter/Combiner allows 6-way combining or splitting of signals. DC passive (allows passage of low voltage signals). High quality casting and finish. Quality PCB internal construction.

Channel Vision HS-6 Broadband Splitter/Combiner $18.99 1000 MHz 5 MHz 5 MHz to 1000 MHz 6-way 6-way Female 75 Ohm 9 dB - Insertion Machine Threads Grounding Screw Printed Circuit Board Design All Ports Power Pass Channel Vision Channel Vision Technology HS-6 HS-6 Broadband Splitter/Combiner Nickel Plated Signal Splitter/Combiner www.channelvision.com

ART SPLITCom Pro Microphone Splitter/Combiner $21.95 Use the SPLITCom Pro to Split or Combine balanced low impedance microphone signals. As a Splitter: The SPLITCom Pro provides one direct-coupled output and one isolated output from a single microphone. As a Combiner: The SPLITCom Pro provides one output from two microphone inputs.

Channel Vision PCB Based Splitter/Combiner HS6 $38.35 Channel Vision HS6 PCB Based Splitter/Combiner 6Way IR Passive. Machine Threads. Grounding Screw. Printed Circuit Board Design. Impedance: 75 Ohm. Frequency Range: 5 MHz to 1000 MHz. Signal Loss: 9 dB Insertion. Power Pass: All Ports Power Pass.

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Optiwave.com - OptiBPM Getting Started

The Magic Behind Digital Camera

A digital camera, as opposed to a film or videotape camera, uses an electronic sensor to transform images (or video) into electronic data. Modern digital cameras are typically multifunctional and the same device can take photographs, video, and/or sound.

In 2005, digital cameras are starting to push traditional film cameras out of many markets. Shrinking device sizes have recently allowed miniaturized digital cameras to be included in multifunctional devices, such as cell phones and PDAs.

Classification

Digital cameras can be classified into several groups:

Video cameras

* Professional video cameras such as those used in television and movie production. These typically have multiple images sensors (one per color) to enhance resolution and color gamut. Professional video cameras usually do not have a built-in VCR or microphone.

* Camcorders used by amateurs. These are a combination of camera and VCR to create an all-in-one production unit. They generally include a microphone to record sound, and feature a small LCD to watch the video during filming and playback.

Still cameras

Digital still cameras are generally characterized by the use of flash memory and USB or Fire Wire for storage and transfer.

Most have a rear LCD for reviewing photographs. They are rated in mega pixels; that is, the product of their maximum resolution dimensions. The actual transfers to a host computer are commonly carried out using the USB mass storage device class (so that the camera appear as a drive) or using the Picture Transfer Protocol and its derivatives.

All use a CCD (for Charged Coupled Device) which is a chip comprised of a grid of phototransistors to sense the light intensities across the plane of focus of the camera lens.

There has recently been some application of a second kind of chip, called a CMOS (Complementary Metal-Oxide Semiconductor) sensor, and this chip is often differentiated from a CCD proper in that it uses less power and a different kind of light sensing material, however the differences are highly technical and many manufacturers still consider the CMOS chip a charged coupled device. For our purposes, a chip sensor is a CCD.

* Standard Digital Cameras: This encompasses most digital cameras. They are characterized by great ease in operation and easy focusing; this design allows for limited motion picture capability. They have an extended depth of field.

This allows objects at multiple depths to be in focus simultaneously, which accounts for much of their ease of focusing. It is also part of the reason professional photographers find their images flat or artificial-looking. They excel in landscape photography and casual use.

* Digital SLRs typically have a sensor nine times larger than that of a standard digital camera, and are targeted at professional photographers and enthusiasts. They resemble ordinary professional cameras in most ways, with replaceable flash and lens components, which give the user maximum control over light, focus and depth of field.

They are also bulkier and more expensive than their casual-use oriented counterparts. They are superb for portraiture and artistic photography because they can be customized for various applications with a comprehensive range of exchangeable lenses.

Professional modular digital camera systems

High-end digital camera backs used by professionals are usually separate devices from the camera bodies which they are used with. (This is because most of the large- and medium-format camera systems in professional use at the time that digital capture overtook film as the professional's medium of choice were modular in nature, i.e. the camera body had multiple lenses, viewfinders, winders and backs available for use with it to fit different needs.)

Since the first backs were introduced there have been three main methods of "capturing" the image, each based on the hardware configuration of the particular back.

The first method is often called "Single Shot," in reference to the number of times the camera's sensor is exposed to the light passing through the camera lens.

Single Shot capture systems use either one CCD with a Bayer filter stamped onto it or three separate CCDs (one each for the primary additive colors Red, Green and Blue) which are exposed to the same image via a beam splitter.

The second method is referred to as "Multi-Shot" because the sensor is exposed to the image in a sequence of three or more openings of the lens aperture. There are several methods of application of the multi-shot technique.

The most common originally was to use a single CCD with three filters (once again red, green and blue) passed in front of the sensor in sequence to obtain the additive color information.

Another multiple shot method utilized a single CCD with a Bayer filter but actually moved the physical location of the sensor chip on the focus plane of the lens to "stitch" together a higher resolution image than the CCD would allow otherwise. A third version combined the two methods without stamping a Bayer filter onto the chip.

The third method is called "Scan" because the sensor moves across the focus plane much like the sensor of a desktop scanner.

These CCDs are usually referred to as "sticks" rather than "chips" because they utilize only a single row of pixels (more properly "photosites") which are again "stamped" with the Bayer filter.

The choice of method for a given capture is of course determined largely by the subject matter. It is usually inappropriate to attempt to capture a subject which moves (like people or objects in motion) with anything but a single shot system.

However, the higher color fidelity and larger file sizes and resolutions available with multi-shot and scan-backs make them attractive for commercial photographers working with stationary subjects and large-format photographs.

Webcams

* Webcams are digital cameras attached to computers, used for video conferencing or other purposes. Webcams can capture full-motion video as well, and some models include microphones or zoom ability.

These devices range in price from very inexpensive to expensive higher-end models; many complex webcams have a servo-controlled base capable of tracking facial motion with the help of software.

Interpolation

Image color or resolution interpolation is used unless the camera uses a beam splitter single-shot approach, three-filter multi-shot approach, or Foveon X3 sensor.

The software specific to the camera interprets the information from the sensor to obtain a full color image. This is because in digital images, each pixel must have three values for luminous intensity, one each for the red, green, and blue channels. A normal sensor element cannot simultaneously record these three values.

The Bayer filter pattern is typically used. A Bayer filter pattern is a 2x2 pattern of light filters, with green ones at opposite corners and red and blue elsewhere.

The high proportion of green takes advantage of properties of the human visual system, which is determines brightness mostly from green and is far more sensitive to brightness than to hue or saturation.

Sometimes a 4-color filter pattern is used, often involving 2 different hues of green. This provides a wider color gamut, but requires a slightly more complicated interpolation process.

The luminous intensity color values not captured for each pixel can be interpolated (or guessed at) from the values of adjacent pixels which represent the color being calculated.

In some cases, extra resolution is interpolated into the image by shifting photosites off of a standard grid pattern so that photosites are adjacent to each other at 45 degree angles, and all three values are interpolated for "virtual" photosites which fall into the spaces at 90 degree angles from the actual photosites.

Connectivity

Many digital cameras can connect directly to a computer to transfer data. USB is the most widely used method, though some have a Fire wire port.

Integration

Some devices, like mobile phones integrates digital cameras. Mobile phone cameras are much more sold than standalone digital ones.

Storage

Digital cameras need memory to store data. The higher one goes in pixel size, the more memory will be needed. Cameras use a removable memory card to store data, but the cheapest and smallest cameras may simply use fixed internal memory instead. Some cameras come with inbuilt memory as well.

Autonomous devices

An autonomous device, such as a PictBridge printer, operates without need of a computer. The camera connects to the printer, which then downloads and prints its images. Some DVD recorders and television sets can read memory cards too.

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Digital Camera
- Take advantage of information on digital camera. Know in detail the functionalities of digital cameras & their utility features.