| 54 |
Title |
TI |
[EN] Digital watermark for personal signatures |
| 71/73 |
Applicant/owner |
PA |
BS BIOMETRIC SYSTEMS GMBH
|
| 72 |
Inventor |
IN |
BALTUS RENE
;
VIELHAUER CLAUS
;
WOOP MARC-BERND
|
| 22/96 |
Application date |
AD |
Aug 24, 2000 |
| 21 |
Application number |
AN |
6840800 |
|
Country of application |
AC |
AU |
|
Publication date |
PUB |
Mar 4, 2002 |
33
31
32 |
Priority data |
PRC
PRN
PRD |
EP
0008288
20000824
|
| 51 |
IPC main class |
ICM |
H04N 1/32
|
| 51 |
IPC secondary class |
ICS |
|
|
IPC additional class |
ICA |
|
|
IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
G06T 1/005
H04N 1/32144
H04N 1/32154
H04N 1/32203
|
|
MCD main class |
MCM |
|
|
MCD secondary class |
MCS |
G06T 1/00
(2006.01)
H04N 1/32
(2006.01)
|
|
MCD additional class |
MCA |
|
| 57 |
Abstract |
AB |
|
| 56 |
Cited documents identified in the search |
CT |
|
| 56 |
Cited documents indicated by the applicant |
CT |
|
| 56 |
Cited non-patent literature identified in the search |
CTNP |
|
| 56 |
Cited non-patent literature indicated by the applicant |
CTNP |
|
|
Citing documents |
|
Determine documents
|
|
Sequence listings |
|
|
|
Search file IPC |
ICP |
|
