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What is a comb filter?
A comb filter is a bandpass filter used to process audio and video signals by mixing the original with a delayed signal. Comb filters allow selected frequencies to pass while blocking their harmonics and all other frequencies.
Analogue comb filters may be found on less expensive CRT television sets.
A 2-line digital comb filter separates the Y (luminance; black and white) and C (chroma; colour) signals while simultaneously processing two consecutive horizontal scan lines.
A 3-line digital comb filter separates the Y and C signals while simultaneously processing three consecutive horizontal scan lines.
A 3D Y/C (also known as 3D digital comb filter), not only separates the Y and C in a video signal, it performs two additional key functions. While comparing three consecutive horizontal scan lines within a single video frame, it also analyses each frame in advance to improve picture quality.
total search333 articles
2005-10-26 Wireless data's future? 3G, Wi-Fi, WiMAX combo
With wireless service providers and equipment manufacturers attempting to sort out the future course of mobile broadband data, some say the 'right combination of 3G, WiMAX and Wi-Fi' will be needed to achieve the most success.
2002-09-06 Win Win Precision ships RJ-45, USB combo connector
Designed for use in laptops, the WRJBS189A RJ-45 connector of Win Win Precision Inc. Co. Ltd also features a USB connector and an LED lamp to monitor the data transmission status.
2011-06-02 WiFi, Bluetooth combo chip reduces power consumption
Broadcom announced its first 40nm Wi-Fi and Bluetooth combo chip for notebook and netbook that reduces chip size, module cost and power consumption.
2009-03-16 VCSEL driver, amp combo fits 10G Ethernet
Maxim Integrated Products has developed the MAX3798 single-chip, VCSEL driver and limiting-amplifier solution targeted for SFP+ Fibre Channel and Ethernet applications.
2001-10-01 TS5070/5071 Combo II programming and hybrid balancing with solid-state SLICs
This application note discusses the programming and balancing design needed when using the TS5070/71 COMBO II programmable codec/filter devices to simplify subscriber line card systems in a CO or PABX.
2006-02-01 Tools promise to route, switch combo networks
NextHop has integrated wireless-controller and wireless-access-point modules from Legra with GateD software for L2 switching, L3 routing and multiprotocol label switching in its UNS 4.0 Dynamic Network Architecture.
2005-11-23 Switch embeds two LEDs in any color combo
CIT Relay & Switch offers a new series of ultra-subminiature bi-color illuminated switches that incorporate two independent LEDs in any color combination of red, green, yellow or blue.
2013-10-11 ST leads combo sensor market with 42% share, says analyst
Yole Dveloppement's latest report puts STMicroelectronics as the global leader in the inertial consumer sensor market, which is estimated to be worth $446 million in 2013.
2006-08-24 Sony combines PC with LCD in new product combo
Featuring a framed display with a transparent border, the new VAIO LS1 TV/PC combo from Sony packs the essentials for powerful computing into a slim chassis discreetly hidden behind the back of a flat-panel 19-inch WSXGA+ LCD display.
2004-10-08 Socket combo supports 1-mm pitch, 3,528-position BGA ICs
Ironwood Electronics' new high performance BGA GHz socket combo allows 1mm pitch, 3,528-position BGA ICs to be used in socket without performance loss.
2012-10-10 Smartphones, tablets boost combo motion sensor market
IHS revealed that revenue for combo motion sensors will rise to $189.1 million this year, up from just $23 million last year.
2009-01-12 Single-chip STB IC packs HD, interactive combo
STMicroelectronics NV has launched a new cable STB IC that cuts the cost of set tops capable of accessing emerging high-value services.
2010-02-16 Sensor, MCU combo module delivers 10 freedom
ST's STEVAL-MKI062V1 iNEMO module integrates six different sensors and a 32bit MCU and it is available as a 4.5cm x 5cm evaluation board with firmware library, PC GUI and software solutions.
2014-03-13 RDA intros WiFi combo chip for mobile devices
The RDA5991 has WLAN, Bluetooth and FM capabilities that work simultaneously or independently with RDA's proprietary WiFi/Bluetooth Coexistence technology.
2010-03-24 Processor allows various control, DSP function combo
Centre Suisse d'Electronique et de Microtechnique (CSEM) has launched the Icyflex family of 16/32bit RISC processor cores.
2015-09-29 Power combo aimed at 2-in-1s, ultrabooks, tablets
The PMIC and battery charger from Intersil aim to offer best-in-class light load efficiency, superior regulation accuracy and fast dynamic response, resulting in longer battery life.
2005-03-18 Platform built for combo of copper, fiber
Entrisphere has just officially rolled its Broadband Loop Multiplexer (BLM) 1500, which has been shipping to select carriers for several months.
2005-11-08 PHY, digital core IP combo integrates HDMI in SoCs
Silicon Image unveiled a HDMI digital IP receiver and transmitter core with a companion PHY chip for MPEG SoC designs.
2005-05-02 PCI combo card generates spectrally pure mixed-signals
ZTEC's ZT530PCI is a single-width 3U-sized PCI instrument that combines the functions of an ARB (arbitrary waveform generator) and a function generator.
2003-11-03 Optimizing the RISC/DSP combo for voice over IP
Extensible architectures are a way to combine RISC and DSPs, but a poor implementation can negatively affect cost and execution speed.
2011-12-02 Nokia works on Bluetooth, indoor navigation combo
Nokia research is working on leveraging its handset and mapping products to enable a wide range of services including indoor navigation.
2005-12-20 New DTMF codec/FSK modem combo IC from CML
The CMX865 is a multi-standard modem for use in telephone based information and telemetry systems.
2013-09-25 NAND flash, combo radio device in 5s notable
TechInsights points out significant changes to the NAND flash and combo radio connectivity solution in the iPhone 5s.
2002-06-28 Mobility Electronics unveils ac/dc, dc/dc combo power adapter
Mobility Electronics Inc. has unveiled the Juice combination ac/dc and dc/dc power adapter for notebooks and other mobile devices, eliminating the need to carry multiple power products.
2003-04-16 Mobile-WLAN combo faces power conundrum
Telecom dream weavers work on technology that would enable WANs and Bluetooth to work seamlessly with WiFi; before we get there, design engineers need to answer issues like leakage current to solve the power conundrum that is hindering the integration of cellphones and PDAs into WiFi paradise.
2015-01-06 Mobile devices push market for combo sensors
Research and Markets estimated the combo sensor market at $420 million in 2013, $585 million in 2014, growing to $1.4 billion in 2019.
2003-07-11 Micronas chip combo offers enhanced image quality
Micronas Semiconductors' controller combo enables TV manufacturers to cost-effectively integrate memory card-based features into TV receivers.
2014-03-20 MEMS combo sensor market rides sustained uptrend
Global revenue for combo sensors will reach a projected $608.2 million this year with a boost from six- and nine-axis IMUs, spurred by mobile devices and wearable electronics, according to IHS.
2000-05-03 MDC and MiniPCI modem/LAN combo design for notebooks
This paper describes the technical challenge of designing software modem and modem/LAN combo for notebook based on these two new platforms. Both modem hardware and software architecture will be discussed. The advantages of cost, development and homologation cycle, as well as variety of choice of vendors will be presented too.
2009-01-26 Market welcomes 'smallest' GPS combo handset device
CSR plc. claims that its latest BlueCore BC7830 is the tightest integrated and smallest GPS combination device designed for mobile handsets to hit the market.
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