![](/images/new-backgrounds/1281095/2810957x1.webp)
Background to the Worldwide VCR
B
“Worldwide Communication through VCR”
Today the Video Recorder is a major media and communication tool, used for both business and home entertainment. Furthermore, the emergence of the camcorder has extended the versatility of the video with home video making.
Video communication is increasingly becoming a global medium, but the different TV broadcasting systems around the world hinder the worldwide exchange of video tapes.
The Samsung
Worldwide TV Color System
Many countries have different TV signal formats, with no exchangeability between them. This makes it impossible to play back or record tapes with different signal formats. This worldwide common VCR overcomes this problem by converting the signal format of any tape into the format you desire.
Comparison of TV color systems
|
|
| NTSC | NTSC4.43 |
| PAL |
| SECAM MESECAM |
| Number of |
|
| 525 |
|
|
| 625 |
| scanning lines |
|
|
|
| |||
|
|
|
|
|
|
| ||
| Field |
|
| 60Hz |
|
| 50Hz | |
| frequency |
|
|
|
| |||
|
|
|
|
|
|
|
| |
| Line frequency |
| 15.734KHz |
|
| 15.625KHz | ||
| Color signal | Sub carrier suppression quadrature modulation | FM modulation | |||||
| modulation |
| ||||||
| system |
|
|
|
|
|
|
|
| Color signal | 3.579545 | 4.433619 | 3.575611 | 4.433619 | 3.582056 | DB 4.25MHz | |
| frequency |
| MHz | MHz | MHz | MHz | MHz | DR 4.40625MHz |
| Burst signal | Fixed phase |
| Inverted by 1 H |
| DR.DB alternation | ||
|
|
|
|
|
| |||
☛ | Classification of TV color systems by country |
|
|
| ||||
➢ | ◆ | NTSC | : Korea, U.S., Canada, Japan, Taiwan, and Philippines |
| ||||
|
| ◆ | PAL | : United Kingdom, Germany, Western Europe, China, and Singapore | ||||
|
| ◆ | SECAM | : France, Eastern Europe, and CIS |
|
|
| |
|
| ◆ |
| : Brazil |
|
|
|
|
◆
◆NTSC4.43 : Pseudo NTSC signal which is made to use the NTSC tape in the Middle East (The tape is the same as that of NTSC3.58)
◆MESECAM : The name of a tape which uses the method of recording the SECAM signal. The output signal during playback is SECAM signal.
➢Worldwide Broadcasting system is B/G, I, D/K, M, N, L.
6
Multi-System VCR vs Worldwide VCR
GB
The Worldwide VCR is similar to the
NTSC |
| SECAM |
| PAL |
|
NTSC | PAL | SECAM |
With a Multi-System VCR:
The TV must correspond to the system of the tape being played, otherwise, a
Tape duplication with system conversion (eg NTSC to PAL) is not possible.
| ANY TV |
|
NTSC | PAL | SECAM |
With the Worldwide VCR:
Tapes can be played on any TV monitor;
Recordings can be made in any TV Broadcasting System, even if the tape is of a different system;
Tape duplication with system conversion is possible.
7