Study Material For Job Assistance Headline Animator

Tuesday, February 21, 2012

What is digital TV?

Digital TV, often abbreviated as DTV, is the broadcasting of television via digital signals – the pictures and sound are converted into digital signals and compressed before being broadcast, while the analog signals cannot be compressed.
What is a digital TV transition?

Digital TV transition, also known as digital TV switchover in some countries, is the process of rendering the older, analog television broadcasting obsolete and replacing it with digital TV broadcasting. The process was completed in the United States by June 12th 2009 after several delays, and other industrial countries have passed legislation taking steps in the same direction.

In Germany, the digital TV transition began in the Berlin area and the terrestrial digital TV transition was completed in 2009 in the rest of the country, while the existing analog cable and analog satellite broadcasting will be switched off in 2012. In the United Kingdom the process has started in 2008 and should be completed by the end of 2010, while all of the Scandinavian countries have already successfully completed the transition from analog to digital TV.

Digital TV vs. analog TV

Digital TV vs. analog TV: what are the advantages of digital TV broadcasting?

As already mentioned, the main advantage of the digital TV transmitting is that the television signal can be compressed, much like the files on a computer's hard drive. This enables the transmitting of as much as five times more information, using the same amount of bandwidth and this automatically results in the ability to broadcast more channels, without having to expand the frequency bandwidth.

The digital TV also offers new features like interactivity, on-screen listings, and wide screen pictures, and new services and packages like telephony, high-speed broadband Internet, and premium channels; subtitling and audio descriptions are also possible and likely to benefit older and disabled viewers.

The video signal in digital TV is encoded by using the MPEG-2 standard, which although has its disadvantages, still provides much better image quality than the standard NTSC analog image. Some digital TV programs are available with Dolby Digital AC-3 sound, which is the same audio encoding system that has been used in movie theaters and offers superb quality sound.

Another great characteristic of the digital TV broadcasting is that it keeps the quality of its signal – the analog TV signal weakens as the signal is transmitted farther away from the broadcasting station and this results in poorer picture and sound quality in the remote areas. The digital signal retains its quality, no matter how far the receiver is from the broadcasting station, as long as he is capable of receiving that signal.

Are there any drawbacks to switching to digital TV?

Although the digital TV is seen as a step in the right direction, it has its disadvantages with the two main concerns being the cost of the digital TV transition and the fact that many households had to either buy new, digitally enabled TV sets, or purchase analog-to-digital converters for each existing TV set in order to be able to watch digital TV.

Another concern was raised by the fact that the transition dramatically increased the disposal of old TV sets and their recycling is not always easy and is very costly. You don't even need to buy a digital tv antenna.

Overall, the digital TV advantages far outweigh its disadvantages and in the near future we are likely to see even more new and exciting features and services that will dramatically change the way we are informed and entertained!

What does a frequency of "X" Hz mean in LCD or Plasma TV or LED TV?

Introduction to 50Hz televisions


A regular PAL television changes the picture at a frequency of 50 Frames Per Second (FPS) or 50Hz. The illusion of movement in the picture is produced by the successive frame changes of the picture 50 times per Second. A 50 FPS (50Hz) Cathode Ray Television (CRT) creates the picture with an electron scan and there is a visible flicker that is sensed by the human eye.


The Human eye is at occasionally sensitive to this frequency depending on the intensity of darkness, the speed of the image, and the degree of brightness thus you will occasionally notice the picture flicker on a 50Hz TV. The flicker becomes more apparent on larger screen.


Early 100 hertz technology


A 100 Hz TV operates at twice the Frames Per Second (100FPS) by producing a replica of every frame and inserting it after the previous one. The result of this doubling of the scan frequency to 100Hz and inserting a copy frame is that this problem was eliminated as far as the eye perceived it. The result of this is to significantly lower the flicker.


How does 100Hz work on LCD and Plasma TV?


LCD and Plasma televisions don't produce flickering because they don't produce the picture with an electron scan. However LCD TV's still benefit from 100Hz because advanced digital circuitry creates an extra frame or middle image. This is done by the TV inventing an extra frame using complex interpolation and motion compensation calculations to work out what the extra fields and frames look like rather than inserting a replica frame. (e.g. the second frame is not the same as the first frame).


However even at 100 FPS the picture still does not deliver a entirely smooth picture particularly with fast motion images. Some television manufactures attempt to reduce this further by employing digital picture processing. Typically there is still a little blurring on quick moving images but the benefits are clearer and better-defined surfaces, sharper pictures, and smoother movement than is possible from 50 Frames Per Second Plasma and LCD televisions.


i.e. if a football moves ten pixels from right to left between frames one, two and three, the 100 Frames Per Second television will digitally create two added frames between one and two, along with two and three, in which the ball will travel five pixels. This therefore results in a total of five frames in which the ball moves a total of ten pixels i.e. the original frames one, two and three plus the digitally created frames that are inserted in between one and two, and between two and three. The eye thus sees a picture that moves more fluidly than before.


The benefits of 100 Hz


The benefit is that 100Hz televisions have a clear benefit of ending a lot of the ghosting effects sometimes seen in LCD TV's. The ghosting effect caused by the new image being displayed before the previous has faded away. The created middle frame also benefits the Plasma television picture by make the picture more fluid and natural.


Most top manufacturers have now got 100Hz LCD and Plasma televisions including Panasonic, JVC, Samsung, Toshiba, LG, Sony, Philips, Pioneer and Hitachi.


200Hz, 400Hz, 600Hz and now 1200Hz


Once Sony launched a 200Hz range which digitally inserts three additional frames between the original 50Hz frames we have seen the market go into overdrive with manufacturers aiming to give the maximum amount of Hertz possible. Overall though the effect of this is that we are seeing fast moving sequences being delivered with a amazingly smooth, more fluid and sharper images than ever before.


Backlight Blinking


XR200, XR400 and XR800 plus Panasonic`s backlight blinking technology has seen a slightly different slant to the traditional refreshing of the image. Whilst the image is cycling at 100Hz or 200Hz, out of phase or in between each frame the LED back light is actually turned off momentarily. This essentially introduces a blank, black frame in between the coloured image frames. This has the effect of creating a black back drop to the coloured image and when cycled very quickly it has the result of further emphasising the colour, whilst also improving the motion handling.


The added benefit for people with photosensitive epilepsy


Scientific studies have proven that for patients with photosensitive epilepsies 100Hz and 200Hz televisions can help prevent seizures when playing video games or watching TV.

PECET: Schedule Released by ANU for 2012

PECET 2012 Schedule Released by ANU
Acharya Nagarjuna University has announced PECET 2012 schedule. PECET
(Physical Education Common Entrance Test) is an entrance examination
for admission to Bachelor of Physical Education and Master of Physical
Education for the academic year 2012-13. ANU has been entrusted with
the responsibility of conducting PECET 2012 by APSCHE. Prof. K.
Viyanna Rao, Vice Chancellor of ANU will be serving as Convener of
PECET 2012.

Applications for PECET 2012 will be issued from 12th March 2012.
Filled in applications should be submitted along with all the
necessary copies of certificates to the Convener, PECET 2012, Acharya
Nagarjune University, Guntur, Andhra Pradesh. Last date for the
receipt of completed applications is 26th April 2012.

PECET is an objective type entrance examination to be conducted across
Andhra Pradesh. Notification will be issued soon by APSCHE on behalf
of ANU. Details of notification along with application procedure,
scheme of examination, download of hall tickets, declaration of
results and counseling will be available on ANU website at
www.anu.ac.in or www.apsche.org.

Read more: http://www.apcollegeadmissions.com/2012/02/pecet-2012-schedule-released-by-anu.html#ixzz1n28IunwF

JNU Online Application Process for Admissions 2012-13

JNU Online Application Process for Admissions 2012-13
Jawaharlal Nehru University, more popular as JNU is going online from
the academic year 2012-13. The prestigious university has decided to
receive applications for various PG, M.Phil and Ph.D. programmes
through online. As this is the first experiment by JNU, it is also
accepting offline applications. Online application facility will be
available on the newly developed website of JNU at www.jnuonline.in .
JNU admit candidates under various categories as described below:

1) Category A (Admission through Entrance Exam): BA (Hons), MA, M.Sc.,
M.Phil, Ph.D., MCA, M.Tech, MPH, Pre Ph.D.

2) Category B: Direction admission to Ph.D. programmes will be offered
in all schools and disciplines based on written test or viva - voce or
both.

3) Category C: M.Phil, Pre Ph.D. and Ph.D. admissions in Science
Schools except Molecular Biology.

JNU, New Delhi will conduct entrance exams between 22nd and 25th May
2012. Candidates can apply either online or offline. Offline
application forms can be obtained from Section Officer, Admissions,
Room No. 28, Administrative Block, Jawaharlal Nehru University, New
Delhi -67. More details are also available at www.jnu.ac.in or
employment news dated 4th February 2012.

Dates to remember:

1) Start of Online application Process: 6th February 2012
2) Close of online submission of applications: 21st March 2012
3) Start of issue of offline applications by post: 6th February 2012
4) Last date for issue of offline applications: 5th March 2012
5) Last date for the submission of completed offline applications:
21st March 2012
6) Last date for the submission of confirmation page of online
application form: 28th March 2012.

Read more: http://www.apcollegeadmissions.com/2012/02/jnu-online-application-process-for.html#ixzz1n288eY4R

Sunday, February 12, 2012

deprived - definition of deprived

Adjective:
  1. Suffering a severe and damaging lack of basic material and cultural benefits.
  2. (of a person) Suffering a lack of a specified benefit that is considered important.

Synonyms:
devoid

Saturday, February 11, 2012

TEN THINGS THAT AN INTERVIEWER LOOKS IN YOU!

TEN THINGS THAT AN INTERVIEWER LOOKS IN YOU!
TEN THINGS THAT AN INTERVIEWER LOOKS IN YOU!
1. Family Background

2. Education

3. Experience

4. Stability

5. Initiative

6. General Ability

7. Interpersonal Skills

8. Confidence

9. Aptitude

10. Pleasant Looks

How one wished that an interview were a simple meeting of minds and hearts. Just one casual meeting where an employee's future gets sealed. Unfortunately, it's not something as pre-ordained as you would like it to be; it's a pre-meditated exercise which fetches you dividends only if your homework is done right.

Saturday, February 4, 2012

Install Picasa 3.8 over the original Picasa 3.0 for Linux.

Install Picasa 3.8 over the original Picasa 3.0 for Linux.



Step 1 (optional): install the latest Wine via PPA:

sudo add-apt-repository ppa:ubuntu-wine/ppa sudo apt-get update && sudo apt-get install wine


Step 2: Add the Google Testing PPA

sudo sh -c "echo 'deb http://dl.google.com/linux/deb/ testing non-free' >> /etc/apt/sources.list.d/google.list" sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 7FAC5991


Step 3: Install Picasa 3.0

Yes, Picasa 3.0, but we'll update it in the next step:

sudo apt-get update && sudo apt-get install picasa


Step 4: Download and install Picasa 3.8 for Windows:

cd && wget http://dl.google.com/picasa/picasa38-setup.exe wine picasa38-setup.exe


Step 5: Now all we have to do is copy the Picasa 3.8 files over 3.0 using the following command:
sudo cp -r ~/.wine/drive_c/Program\ Files/Google/Picasa3/* /opt/google/picasa/3.0/wine/drive_c/Program\ Files/Google/Picasa3/


Now run Picasa 3.8 from Applications > Graphics > Picasa > Picasa.


Important note: Don't click the "Places" button as it will freeze Picasa 3.8 and it will fail to start again!


read more http://www.webupd8.org/2010/04/how-to-install-picasa-36-in-ubuntu.html