High Definition Multimedia Interface (HDMI)
November 13, 2008
Two different media require an interface to transmit information between each other. Interfaces are mainly used to connect two different sources. Various connectors are now available and few to mention are interfaces to connect audio and video sources; electrical connectors to connect different electric circuits; network interfaces to connect a user terminal and public or private network; user interface that connects the user with the system; and physical interfaces that connects the hardware components. HDMI is one such interface that is used to connect digital audio and video sources.
What is HDMI?
HDMI (High Definition Multimedia Interface) is an audio and video connector interface that is mainly used to carry uncompressed digital streams. It connects various digital audio and video sources such as Blu-ray disc players, set-up boxes, video game consoles, personal computers to various other devices such as computer monitors, digital televisions and digital audio devices. This is a digital alternative to various standards like composite video, S-Video, component video, SCART, VGA and D-Terminal. HDMI supports any PC video format or TV that is either an enhanced model or a standard model on a single cable wire together with 8 channels of digital audio.
As many as 800 PC companies have accepted to adopt the HDMI specification. In the year 2006, HDMI first appeared in digital still camera and camcorders. It was produced and distributed in the year 2003. Though HDMI devices are produced according to the different specifications, each version uses the same kind of cable that have different capabilities and also increased bandwidth.
HDMI supports audio streams like DTS (Digital Theatre System) and Dolby digital and uncompressed digital audio(8 channel) at a sample rate of 192KHz. About 8 channels that consist of one bit DSD (Direct Stream Digital) audio are supported by this HDMI. It also supports producers of motion pictures such as Universal, Warner Bros., Fox and Disney. Some of the founders of HDMI are Philips, Silicon image, Hitachi, Toshiba, Thomson and Matsushita electric Industrial.
Various specification of HDMI are signals, protocols, mechanical requirement and electrical interfaces. Different versions of HDMI devices are HDMI 1.0, HDMI 1.1, HDMI 1.2, HDMI 1.2a, HDMI 1.3, HDMI 1.3a, HDMI 1.3b, HDMI 1.3b1 and HDMI 1.3c.
History
AV connectors that is compatible to DVI (Digital Visual Interface) was the basic idea behind the production of HDMI that started in the year 2002. During those times DVI-HDTV and DVI-HDCP (High-bandwidth Digital Content Protection) were applied on HDTV(High Definition Television). About 5 million HDMI devices were sold in the year 2004 according to In-Stat.
Connectors
The three connectors of the HDMI connector are Type A and Type B for HDMI 1.0 specification and Type 3 for HDMI 1.3 specification. Type A connector comes with 19 pins that has bandwidths to support SDTV, HDTV and EDTV. Type B connector comes with 29 pins that can carry double video bandwidth(Type A). Type C is designed mostly for portable devices and comes with 19 pins configuration but smaller than Type A connector. You can easily connect Type C connector to the Type A with the Type A to Type C connector cable. HDMI cables are designed to carry audio, video and device controlling signals.
To remove confusion about different cables supporting different video formats, HDMI cables have been defined in two categories. Cables that come under Category 1 is tested at 74.5MHz and cables that come under Category 2 is tested at 340MHz. According to the HDMI website, HDMI cables that were developed before HDMI 1.3 specification measures less than 5 meters that can be operated as the Category 2 cable (Category 2 tested cables are only to be used). Cables that are very long cause disturbances and instability because of weak signals. HDMI cables that work with electronics increase the signal strength that are about 30 meters.
HDMI is thus used as an audio and video connector to transmit uncompressed digital streams. Interfaces are thus helpful when two media are totally different.
Cornea MP4204 Plasma TV
November 4, 2008
Company name itself reveals the efficiency of this plasma TV. Cornea MP4204 Plasma TV is a standard production of Cornea. Whenever you opt for buying a plasma TV then think of Cornea.
Cornea equals transparency
The company name has this connotation. Here transparency lies not of the transparency of the system but of the technology. The dimension of the system is 3.23 inches depth, 20.45 inches width and it has 72lb weight. Screen size of this plasma TV is 42 inches and it is flat. Display resolution of the TV is 852 x 480 pixels. Contrast ratio and aspect ratio supported by the unit are 800:1 and 16:9 respectively. The brightness range of the TV is 620cd/m2 and out put colour ratio of the system is 16.77 million colours. Viewing angle supported by this plasma vision television is 160 degree. These above mentioned features give clarity for pictures and produce good impression. Display capability depends on display format and the display format supported 1080i (HDTV), 480p (EDTV), 720p (HDTV) and 480i (SDTV).
Stereo audio type gives clarity for the sound system. Automatic remote system, adjustable colour temperature and parental control, sleep timer, rear input connectors, front input connectors, rear out put connecters are the noteworthy features of this plasma TV. Another striking feature of this Cornea plasma TV is the PIP that allows you to view multiple channels at the same time.
Now it is sure that you get a clear vision of the technology and value of this plasma TV. Let us give kudos to Cornea for their new Cornea MP4204 42” Plasma TV.
| General Information | |
|---|---|
| Brand | Cornea |
| Model | MP4204 |
| Weight | 72lb |
| Dimensions | 3.23 inch (d), 20.45 inch (w), |
| Screen Size | 42 inches |
| Resolution | 852 x 480 pixels |
| Brightness | 620cd/m2 |
| Viewing angle | 160 degree |
| Features | |
| Remote control | Yes |
| Picture in picture | Yes |
| Sleep timer | Yes |
LG 42PC56 Plasma TV
October 28, 2008
Pleasant viewing is made possible with LG 42PC56 HDTV. This one is the means to alleviate all you audio and video viewing problems. You can access and operate the unit according to your whims and fancies as it is offers user friendly features and controls. It is characterised by effective audio and video functions each with a special purpose. Compact structuring is made possible with a dimension of (H) 71.3 cm, (W) 104.8 cm, (D) 8.4 cm and weight of 24.57 kg. Black enclosure of the unit is very attractive in looks as well.
Crystal clear view
It is the quality of the display that matters the most when it comes to these units. Widescreen viewing is offered with 42 inch screen size. In this case the unit supports 1024 x 768p resolution that adds to the clarity of the pictures. On the other hand lays effective brightness and contrast with ratio of 1,500cd/m2 and 15,000:1. Minute details of the pictures will not be missed with 12.5bits colour and 16:9 aspect ratio. Clear Filter Pro is the filter type included in the unit with. Various adjustments are facilitated with 178 degree view angle and Swivel, Tilt angle adjustments.
The life span of this LG plasma TV is considered to be 60,000 hours. Analogue and digital broadcasting systems are PAL?/I’, PAL/SECAM BG/DK, Secam L/L’, NTSC M (AV ONLY and Video ATSC, DCR, Satellite, DVB-T, (CI Type), DVB-S , DVB-C , Broadcasting System (Data), MHP, MHEG (UK Only) and XD Engine. NTSC, PAL and SECAM are the tuners facilitated that offers effective tuning. Progressive scan is supported by the unit.
Broadcast format displayed and supported are 720p (HDTV), 480p (EDTV), 480i (SDTV) and 1080p (HDTV), 1080i (HDTV), 720p, 576p, 576i respectively. HDTV is set ready in this unit and supports HDCP DVD, HDD and VCR is supported in the unit. Teletext of 100 pages is supported by the unit.
Power Requirements
Voltage required by this unit is 100V~240, 50Hz~60Hz and power consumed is 300 watts on average and 400W maximum. On stand by mode the unit consumes as low as 1 watt.
Connections
Connectors such as Component x 1, HDMI x 2, RF x 1 and 1 x D-Sub (RGB PC) are the featured rear input connectors. Front input connectors include S-Video x 1, Composite x 1and Audio (RCA) x 1.
Effective audio
The audio factor is given as much importance as the video factor as it is equipped with 2 Speakers of 10 Watt as the speaker power. Surround sound in the audio mode facilitated in the unit. Digital noise reduction is facilitated in the unit. Bass, Treble and Balance are also included.
Other details
English, German, French, Italian, Russian, Spanish, Swedish, Portuguese, Finnish, Greek, Polish, Danish, Norwegian, Czech, Hungarian, Romanian, Bulgarian, Slovakian, Serbian and Croatian are the OSD languages supported by the unit. All the functioning of the unit can be controlled by a standard remote. Added feature includes a parental lock that secures the unit from alien access.
LG 42PC56 42” Plasma TV recreated the whole TV viewing experience and discards poor audio and video performance.
| General Information | |
|---|---|
| Brand | LG |
| Model | 42PC56 |
| Weight | 24.57 kg |
| Dimensions | (H) 71.3 cm, (W) 104.8 cm, (D) 8.4 cm |
| Screen Size | 42 inch |
| Resolution | 1024 x 768p |
| Number of speakers | 2 |
| Speaker Power | 10 Watt |
| Sound type | Surround |
| Brightness | 1,500cd/m2 |
| Viewing angle | 178 degree |
| Power consumption for operation | 300 watts |
| Power consumption for standby | 1 watt |
| Features | |
| Remote control | Yes |
| Built-in speakers | Yes |
| Child lock | Yes |
| DVD player/recorder | DVD player |
| Wall mountable | Yes |
| Language menu | Yes |
| Digital video noise reduction | Yes |
| On/off timer | Yes |
| AV inputs | Yes |
| S-Video | Yes |
| Component video connection | Yes |
| Progressive scan | Yes |
Samsung PS42A466 HD Ready Plasma TV With Built-in Digital TV Tuner
October 24, 2008
Samsung PS42A466 Plasma TV is HD Ready with a built-in digital TV tuner. This is also HDTV compatible, meaning that it can receive HD signals and display it with precision. This product comes with 42 inches screen size and a contrast ratio of 20000:1. With the Freeview tuner you can tune in to different Freeview channels. The response time of this model is almost zero meaning that it can respond to user’s input in just no time. Other features include Digital Natural Image engine (DNIe), Anti-glare treatment, FilterBright and 1080 24p Real Movie. This model features HDCP Support too.
Display Capabilities
Samsung PS42A466 Full HD Plasma TV comes with built-in tuners like NTSC, PAL and SECAM. The native aspect ratio of 16:9 gives the user complete widescreen viewing format in the original format.
Image Quality
The display resolution of this plasma TV is 1024 x 768 pixels. Brightness amounts to 1500cd/m². The viewing angle allowed in this model is 175 degree. You can watch programmes clearly and comfortably even from this angle.
Connectors
Connectors that come with Samsung PS42A466 Widescreen Plasma TV are Component x 1, Audio (RCA) x 1 and Headphone Jack. Various other connectors included are two SCART jacks, three HDMI sockets and a VGA input, with which you can connect it with different external devices such as Blu-ray players, games consoles and Home Cinema Systems.
Audio Quality
Audio in this plasma TV model is enriched with 2 speakers that produce Virtual Surround Sound. The speakers produce a power of 20W and this adds to the quality of the sound. Other features include video noise reduction.
Important Features
Other important features of this plasma TV include parental control and sleep timer. Both these features are helpful enough for the user to set controls accordingly. Parental control protects the TV from children’s meddling with it. Sleep timer is used to set the time to switch off, while you fall asleep watching your favourite programmes. Samsung PS42A466 Plasma TV comes with a standard remote control and power supply as accessories.
Progressive scan is another important feature that improves the picture quality. Teletext feature helps you to easily access information related to sports, entertainment, weather, financial services and more, and also comes with a memory of 1000 pages. This plasma TV measures 66.8cm (H) x 105.5cm (W) x 9.6cm (D) in dimensions and weighs 26.76 kg. The colour of the cabinet is black.
LG 50PC56 HD Ready Plasma TV with Freeview
October 21, 2008
LG 50PC56 High Definition Plasma TV is HD Ready with 100Hz technology back-up that facilitates you to watch fast action movies. With the digital tuner availed here, you can tune in to over 25 Freeview channels. The screen size of 50 inches is ideal enough for the viewer to watch programmes with complete gratification. Contrast ratio of this plasma TV model is 15000:1. This determines the difference between the darkest black and the brightest white. It comes with HDCP support and the response time is almost zero that the TV responds to the user’s input immediately.
Display Capabilities
LG 50PC56 HDTV is HD Ready, meaning that it can display high definition images. However, it requires a separate receiver to view HDTV signals. NTSC, PAL, SECAM and DVB are some of the different built-in tuners available with this plasma TV model. The native aspect ratio of its screen comes to 16:9, which means that you can enjoy movies in their original format.
Image Quality
The display resolution of this plasma TV comes to 1366 x 768 pixels. Display resolution is referred to as the total number of pixels that are displayed in both horizontal and vertical dimensions. Quality of the image depends upon the resolution. Contrast ratio and brightness together work to give better picture quality. Hence, higher the resolution better will be the picture quality. Brightness of 1500 cd/m² is referred to as the intensity of the luminance of any surface in a particular direction.
Connectors
The rear input connectors include 1 x Component, 2x HDMI, 1 x RF, 1 x D-Sub(RGB PC) and the front input connectors include 1 x S-Video, 1 x Composite and 1 x Audio (RCA).
Audio Features
There are two speakers that come with LG 50PC56 Plasma TV that produce surround sound quality. The total output power of both the speakers is 20W apiece. 3D Comb filter and Enhanced Noise Reduction are some of the important features included in the audio system of this TV.
Other Features
Other important features included in LG 50PC56 Widescreen Plasma TV are parental lock and a sleep timer. With the parental lock, you can prevent children from meddling with the device. Its Teletext feature can store about 1000 pages in its memory. It comes with a standard remote control. A standard remote control is one that can be used with all types of audio and video devices. This device measures 82.7cm (H) x 124.2cm (W) x 8.8cm (D) in dimensions and weighs about 34.56Kg. The colour of the cabinet is black and it comes with a stand as well.
