Atss Sorting Method; General Case - Daewoo DTK-28 Service Manual

1.3 ATSS SORTING METHOD

The TV set sweeps all the TV bands from beginning of VHF to end of UHF. The TV controlling software for each
program checks if a VPS CNI code is transmitted (this system exists for German, Swiss and Austrian transmissions).
If no VPS CNI code is found, then the system checks if a CNI code is transmitted as part of the teletext transmission
( Packet 8/30 format 1 and format 2). If such a code ( VPS or teletext ) is found and if this code is in the ATSS list, the
program is automatically named.
If the transmission does not have VPS CNI, and no teletext service is available, then there is no possibility of the
program being automatically named.
The programs found are then sorted in 4 groups :
Group I : It contains all the programs from the selected country and named by the TV controlling software. Within this
group the sorting order is fixed by the ATSS list.
Group II : It contains all the programs with a strong signal strength which are not listed in group I.
Group III : It contains all the programs with a weak signal strength which are not listed in group I.
Group IV : If two or more programs with the same code are found, only the strongest ( or if they have the same level
the one with the lowest frequency) is listed in group I, II or III. The others are listed in group IV.

1.3.1 GENERAL CASE

Program
number
1
2
...
n
n+1
...
m
m+1
...
p
p+1
...
q
q+1
...
99
0
Group Skip
Group I
Group II
Group III
Group IV
not used
CP-850/F Service Manual
1.3.2 SPECIAL CASE
Program
number
1
...
m
m+1
...
p
p+1
...
q
q+1
...
99
0
Special case : Country selection = Others
-9-
Group Skip
Group II
Group III
Group IV
not used