| 54 |
Title |
TI |
[DE] VERFAHREN UND VORRICHTUNG ZUR ERMITTLUNG DER ABGELAUFENEN SPIELZEIT BZW. BANDLAENGE UND/ODER DER RESTLAUFZEIT VON KASSETTEN ODER SPULEN BANDFOERMIGER INFORMATIONSTRAEGER
[EN] Tape cassette running time measurement - involves two shafts generating pulses whose ratio is used for time calculation |
| 71/73 |
Applicant/owner |
PA |
GRUNDIG EMV
|
| 72 |
Inventor |
IN |
OBREMSKI MICHAEL
;
OPELT CHRISTIAN
|
| 22/96 |
Application date |
AD |
Nov 5, 1976 |
| 21 |
Application number |
AN |
2650665 |
|
Country of application |
AC |
DE |
|
Publication date |
PUB |
May 11, 1978 |
33
31
32 |
Priority data |
PRC
PRN
PRD |
|
| 51 |
IPC main class |
ICM |
G11B 27/36
|
| 51 |
IPC secondary class |
ICS |
G07C 3/04
|
|
IPC additional class |
ICA |
|
|
IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
G11B 27/13
|
|
MCD main class |
MCM |
|
|
MCD secondary class |
MCS |
G11B 27/13
(2006.01)
|
|
MCD additional class |
MCA |
|
| 57 |
Abstract |
AB |
[EN] The length of the tape played may be measured. A first shaft is allocated to the tape reel (11, 13), and there is a second shaft (12). This shaft is independent from the first shaft and it is coupled with the tape (10). It delivers pulses depending on their angle of rotation. The pulses are counted and they are compared with each other and the time played or remaining to be played is calculated from the pulse ratio. |
| 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 |
G03B 1/64
G11B 27/10
G11B 27/11
G11B 27/36
|
