The 4×4 audio video router which can route four different inputs to four different outputs with increased speed and completely eliminating the flicker from picture. In switching of audio and video signals, multiple in and multiple out is very difficult task to perform simultaneously and this can be solved by audio video router.
ROUTER means something which directs or forwards information on a specified route. Router is mainly used for routing the signal from input to the output, in the CATV system and CCTV system. The routers, which have both Audio and Video signals as input are said to be audio video router and Audio video router (AVR) routes different audio-video inputs to different outputs.
In router, the FRONT PANEL is provided for input and output selection while the BACK PANEL is provided for the connection of Audio and Video input and to carry out Audio and VIDEO output separately. I Study journal for knowledge whose characteristics is International Journal for engineering, International Journal for Technology and international journals with impact factor.
We know that human persistence of eye is 1/16th of second and using audio video router the switching of video will be done in 0.01microsecond which is greater than persistence of eye. Therefore, frame repetition rate of picture will be very high and picture will move very fast and we see smooth picture running on the screen. Therefore flicker will be completely eliminated from the picture. Here we use different programming logic in switching logic circuitry therefore according to our logic the multiple channel can be accessed and problem of multiple switching is overcome by router.
HISTORY OF ROUTER
Router is mainly used for routing the signal from input to the output, in the CATV system and CCTV system. In the past, switcher was used instead of router for this purpose. Video routers are manufactured in a wide variety of sizes and styles, as well as signal formats. Many have the flexibility to mix signal formats in the same frame, which means they could be used to route both digital and analog video, VGA and audio, and so on. Others are dedicated to a single format. Some, usually video switchers, are highly specialized, such as those that can automatically switch from one source to another if the signal is lost on the original input. Because routers are so central to an installation’s layout, many are designed to allow expansion to add a greater number of inputs, outputs, or both, as future needs demand. Video routers and switchers can actually be mechanical devices, which mean they will make the routing signal paths through a mechanical switch. These are seldom used for any kind of demanding application, because the mechanical contacts become electrically noisy, and in time the actuators tend to be temperamental. Active, electronic switching is quieter and far more reliable. Now in these days different types Audio-Video Router is in general use, For example, 4X4 Audio Video Router, which routes four inputs to the four different outputs. Similarly, 8X8 audio video router, 12X12 audio video router, 16X16 audio video router. I read journal for knowledge whose characteristics is International Journal for engineering, International Journal for Technology and international journals with impact factor.
COMPARE WITH SWITCH
A router is more sophisticated device than a switch. A switch is used for wired networking connection while router can connect wired or wireless (Wi-Fi) networks.
In the past, switch was used instead of router for routing the signals from input to output. The basic difference between switch and router is that the switch can control only one output means there is only one to one logic while router can control more than one output and there is one too many logic. Thus if we want to route one input terminal on more than one route or we want one input terminal available at several output terminal then it is not possible with switch, while router can do this job easily. Normally if we use switch then it will switch the input in about one second but instead of switch we can use audio video router which use logical IC’s and due to the use of Logical IC’s switching will be done in micro seconds. So fast switching of audio and video is possible. Routers can actually be mechanical devices, which mean they will make the routing signal paths through a mechanical switch. I found solution from I Study journal for knowledge whose characteristics is International Journal for engineering, International Journal for Technology and international journals with impact factor.