Electronic Site

DVR Card

DVR cards are mostly used in surveillance systems to process the information received from a source such as a camera and pass it on to a storage device like a hard disk. Once installed inside a computer, the card becomes active and is instantly recognized by the machine thanks to the accompanying software. Once properly installed, this card allows the user to digitally record signals on to his hard drive and then view it instantaneously.

Depending on need, you can also choose the quality of storage. DVR cards frames per second (fps) ranges are 30, 60,120,240 and 480. For a hard disk having 80 GB disk space, at 30 fps one can record for 320 hours. Similarly, at 120 fps, for an 80 GB hard disk drive, one can record for up to 80 hours. If you have a 960 GB hard disk, you can record for a whopping 3840 hours at the rate of 80 fps, which translates into 160 days or nearly 5 months.

With unmatched features, DVR cards have come to symbolize a much needed technology intervention in the field of surveillance and monitoring. In the coming years, with advanced features, DVR cards will completely replace its conventional rival.

Only a limited number of cameras are supported by the old DVR cards (launched nearly two years ago). If more cameras were needed, more cards had to be installed. Modern cards come with enhanced inbuilt processing power that reduces the burden on the computer.

Adobe Flash

Creating Simulations

Some software tools, such as Camtasia and Captivate, are designed solely for creating software simulations. They have advantages and disadvantages, and Cyber Works does use them, along with other simulation software packages.

Since the Palm software only resides on the Palm Pilot, I couldn’t use a PC-based software-simulation tool to capture screens. So I used my scanner and Photoshop, imported the screens and artwork into Flash, and created the simulation.

At Cyber Works, we are currently working with an Internet company whose proprietary software (for security reasons) only works on computers behind their firewall.

Video

Video is becoming more prevalent on the web these days, with the rise of YouTube and other video-streaming services. Video can significantly enhance course materials, but (as with audio) it can be difficult to manage, due to multiple video formats and players. On the PC, AVI is the dominant format and Windows Media Player is the usual player. On the Mac, MOV is the format of choice and the Quicktime Player from Apple is the dominant player. However, there are other video formats and players, including Real media / Real Player and others.

When Flash MX 2004 was released, video was a major component. And with Flash CS3, video has become even easier to incorporate. You can deploy video on your own server or on a dedicated Flash Streaming Video Server, for extra bandwidth. Flash has its own video format, called Flash Video (FLV). Flash videos can be played by any Flash movie (SWF) file, so no additional player is necessary.

A short demonstration video, not longer than 1 minute, can be embedded in a Flash movie. If you are expecting a lot of traffic and have longer movies, you should use a Flash Video Streaming server.

Cue Points can key off of specific video frames, to control other events. And the new captioning feature can add closed captioning for video segments. At Cyber Works, we created a video of a speaker presenting a slideshow.

Consider your audience and the minimum system requirements necessary to view streaming Flash videos. Dropped frames and inconsistent playback can occur on slower machines.

Car DVD

Knowing what this tuner is can help to answer the question “Car DVD player mysteries: What is DVB-T?”

Basically, the above term is an abbreviation that stands for “Digital Video Broadcasting-Terrestrial.” It is also the industry standard – first developed in Europe by the Digital Video Broadcasting Consortium– for how digital terrestrial television is broadcast.

This standard, in effect, is the “law” for how digital television can be beamed for receipt at the other end by equipment built to this standard and making use of certain tuners.

It first appeared in 1997, from the United Kingdom and is now the recognized standard in many parts of the world and in several countries in the Americas, though not in the United States.

It allows for the efficient compression and streaming of audio, video and other types of data digitally in what is called the MPEG transport system.
Many car DVD players and other devices that are designed to receive and then play digital audio and video come equipped with DVB-T, by the way, though these devices are far more common in Europe and the old British Commonwealth countries than anywhere else.

China and all North American countries make use of a different digital video broadcasting standard, so the chances are slim that one would see a car DVD player equipped with this tuner in those regions.

There are several other different digital television and digital broadcasting standards that exist, with many countries allowing for the manufacture and distribution of car DVD players and other devices that feature not only those tuners but also DVB-T. North American players and devices go with what is known as ATSC.

There are three different standards for DVB-T, so knowing which standard your player is operating under can be important because two of those standards are more recent and equipment making use of older-standard players may not work or interface at all with the newer-standard players.

When buying or selling a car DVD player, it can be important to know how the player handles those signals, as well.

A car DVD player equipped with digital video broadcast capability is all about compression rate, meaning how fast it can squeeze and then decode signals coming from a broadcast source, which will also impact the quality of any pictures displayed.