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ZDNet Dictionary Definition
- Digital Signal
- (1) An electronic signal transmitted as binary code that can be either the presence or absence of current, high and low voltages or short pulses at a particular frequency.
- Full Digital Signal Definition >>
ZDNet Resources
- Tributaries AC100
- We've all been there before: Your new DVD player or game console outputs a digital signal via only an optical jack, but your AV receiver only has a free coaxial connector. You need that digital signal to get 5.1 Dolby or DTS surround sound. Otherwise, you'll be stuck...
- Tags: Consumer electronics, DVD, digital signal
- Product reviews 2008-01-31
Additional Resources
- Is it time to go quad-core?
- Quad core, Chris?You have told us over and over that all you need is Google. You don't need a real OS, real apps, or any processing power to speak of. All you need is a browser, preferably Chrome. Why on Earth would you need a quad core...
- Tags: Processors, cloud computing, quad-core, laptop computer, virtualization
- Discussion threads 2009-11-23
- Turtle Beach Ear Force X41 - headset
- Wireless headphones have been around for a while, but it's only been in the past few years that quality has gotten high enough for discerning listeners to consider using them. Many manufacturers, for instance, have turned to infrared IR technology for wireless signal transmission, which powered the Turtle Beach X4...
- Tags: Game players, Consumer electronics, Turtle Beach, headphone, X41, Microsoft Xbox, headset
- Product reviews 2009-11-20
- Samsung Convoy SCH-U640 (Verizon Wireless)
- Photo gallery:Samsung ConvoyEditors' note: This review originally reported that the Convoy does not support Verizon's push-to-talk network. In fact, the phone does support the service. We apologize for the error.Hot on the rugged heels of the Motorola Barrage comes an equally durable phone for Verizon Wireless called the Samsung Convoy....
- Tags: Verizon Wireless, keypad button, Samsung Convoy, Samsung Electronics Co. Ltd.
- Product reviews 2009-11-20
- Cricket Captr
- Though touch-screen multimedia handsets and complicated smartphones are common these days, that doesn't mean there isn't a market for entry-level phones. The Cricket Captr is one such handset, with basic features and only a VGA camera. The photo quality isn't too good, but if all you want is a phone...
- Tags: Telecom & Utilities, Instant messaging, Cricket, camera, phone
- Product reviews 2009-11-10
- SynthMaker 1.1.4 (Windows)
- SynthMaker is the ultimate sound synthesizer. Create your own instruments and effects to use in your music or to share with others. Learn about and experiment with sound synthesis and digital signal processing techniques. The sound engine employs one-sample-at-a-time processing throughout allowing you to create single sample feedback paths essential...
- Tags: DSP, Microsoft Windows, Outsim, SynthMaker
- Software downloads 2009-11-10
- Sony Ericsson Equinox TM717 - carbon black (T-Mobile)
- Photo gallery:Sony Ericsson Equinox TM717The Sony Ericsson Equinox is the first phone from the manufacturer to land at T-Mobile since the TM506. In many ways the Equinox is a fitting successor; like the TM506 it has a thin flip phone design and it sports a similar feature set that includes...
- Tags: display, Equinox, Sony Ericsson Mobile Communications, phone, T-Mobile
- Product reviews 2009-11-03
- Frame 1.2.1 (Mac)
- Frame is an application for testing digital cameras and lenses. Frame provides professional features, superior performance, excellent usability, and intuitive graphical user interface. Frame provides the following tests: - OECF analysis - Exposure analysis - Noise analysis including signal-to-noise ratio, dynamic range, tonal range, and color sensitivity - Color analysis...
- Tags: Apple Macintosh, Eastman Kodak Co., Analysis, Kate Labs
- Software downloads 2009-11-02
- eTrigger 0.434 (Windows)
- eTrigger can process up to 300 individual MIDI triggers with complete input and output re mapping. Each channel strip consists of multiple controls and options for processing the MIDI input signals. Audio trigger to midi conversion: Trigger to Midi modules can be expensive. eTrigger has a built in Audio to...
- Tags: MIDI, Drum, Microsoft Windows, eTrigger 0.434, Keyboards, Hardware, Peripherals
- Software downloads 2009-10-28
- Envizen Digital Duo Box Pro ED8850A
- You probably haven't heard of Envizen, but it's one of several off-brand companies that are putting out new digital portable TVs to replace all the obsolete analog units that were toted to sporting events or kept around for emergencies when the power went off. As implied by its name--the Envizen...
- Tags: TVs, TV & Home Theater, Consumer electronics, DVD, Games, digital television, TV
- Product reviews 2009-10-27
- Nokia 2705 Shade - black (Verizon Wireless)
- Photo gallery:Nokia ShadeMost of Nokia's recent cell phones for the U.S. market haven't been too exciting. Sure, the company gave us the odd Nokia Twist last month, but we're more likely to see functional handsets like AT&T's Nokia Mural 6750. Verizon's new Nokia Shade 2705 certainly is part of that...
- Tags: Telecom & Utilities, Verizon Wireless, Nokia Corp., phone
- Product reviews 2009-10-27
- B&N Nook beats Amazon Kindle & Sony Reader, here's why
- Thanks for double-checking on WiFintLooks good butNo international support. Like the Sony not available outside the US. Again Amazon Kindle is ahead of the curve even if the device is not as sophisticatedRE: B&N Nook beats Amazon Kindle & Sony Reader, here's whyI have a Kindle, the service for...
- Tags: Wireless LANs, Wi-Fi, Wireless and Mobility, B&N Nook, B&N, Amazon Kindle, Sony Reader, Amazon.com Inc., Sony Corp.
- Discussion threads 2009-10-21
- Nokia Mural 6750 (AT&T)
- Photo gallery: Nokia Mural 6750Nokia has given U.S. carriers an interesting selection of cell phones over the past few months. We've seen quality music phones, quirky square models, and basic handsets just for making calls. The newest device to land on our desk, the Nokia Mural 6750 for AT&T, falls...
- Tags: Engineering, Telecom & Utilities, Cellular phones, AT&T Corp., Mural, Nokia Corp., phone
- Product reviews 2009-10-16
- Mint Studio Speaker System
- The last Mint product we looked at--the Mint 220 Wireless Digital Music Station--offered us something that we had not yet seen in an iPod speaker dock. Instead of combining iPod playback with a CD player or AM/FM alarm clock radio, the Mint 220 gave us the ability to wirelessly stream...
- Tags: Digital media, USB extender, USB, Apple iPod
- Product reviews 2009-10-12
- Motorola Barrage (Verizon Wireless)
- Photo gallery:Motorola BarrageMotorola has a long history of creating durable cell phones, but with the occasional exception, they've ended up at Nextel. As we've long encouraged Moto to spread the rugged love, we were glad to see it launch the Motorola Barrage for Verizon Wireless. So named (or so we...
- Tags: Telecom & Utilities, feature set, Motorola Inc., Verizon Wireless, Motorola Barrage
- Product reviews 2009-10-08
- Motorola Entice W766 (Verizon Wireless)
- The Motorola Entice W766 is the latest Motorola flip phone to join the Verizon Wireless family, and it is almost the same as the Motorola Rapture VU30, which was released late last year. It's not as sleek and shiny as the Rapture, but the Entice does have external touch-sensitive keys...
- Tags: Media players, Verizon Wireless, Motorola Inc., phone, speakerphone, display, music player
- Product reviews 2009-10-07
- Samsung M240 (Sprint)
- The same day it introduced the touch-screen Samsung Rogue, Samsung quietly unveiled the Samsung M240. Made for Sprint, the M240 is all about communication. Features are few--you don't even get Bluetooth--and the simple flip-phone design lends itself to making calls. On that front it does a decent job, but its...
- Tags: Sprint Communications, headset jack, Samsung M240, Samsung Electronics Co. Ltd.
- Product reviews 2009-09-16
- Video Purifier 1.4.6 (Mac)
- BackgroundVideo signals are contaminated by noise in many different ways even if they are completely digital. Sources of noise are for example storage media, image acquisition equipments (e.g. cameras, digitizers etc.), transmission channels (e.g. broadcasting, satellite links, cable networks, statistical multiplexers) and receiving and recording equipment. The noise has different...
- Tags: Apple Macintosh, Video, Noise, Innobits AB, BackgroundVideo Signal, Innobits Video Purifier, Corporate Communications, Marketing
- Software downloads 2009-09-16
- Turtle Beach Ear Force X31
- Last month we took the Turtle Beach Ear Force P21s for a spin using its chat function with our PlayStation 3. To be fair, we thought we would even the playing field by checking out the company's Xbox 360 headset and voice chat solution with the Ear Force X31....
- Tags: Game players, audio wire, earcup, Turtle Beach Ear Force X31, P21, headset
- Product reviews 2009-09-04
- Is the new Canon EOS 7D a Nikon D300s killer?
- Missed a couple of thingsThe 7D also uses SDHC CF cards. Those appear to be required for the maximum burst rate. And according to the posted spec, HD video works not only at 30FPS, but also at 24 and 29.97. I want one.RE: Is the new Canon...
- Tags: sensor, Canon Inc., pixel, Nikon Corp.
- Discussion threads 2009-09-02
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