公开(公告)号：AT198002T

公开(公告)日：2000-12-15

申请号：AT95103038

申请日：1995-03-03

Applicant: INTERFLEX DATENSYST

Inventor： KAUFMANN JOHANNES ,  HAERING GUENTHER ,  VOSSELER JUERGEN

IPC: G06K1/12 ,  G06K19/00 ,  G06K19/06

公开(公告)号：GB2009477B

公开(公告)日：1982-06-09

申请号：GB7841394

申请日：1978-10-20

Applicant: INTERFLEX DATENSYST ,  INTERLOCK SICHERHEITSSYST

IPC: G06K7/016 ,  G06K7/10 ,  G06K7/14

公开(公告)号：GB2086110A

公开(公告)日：1982-05-06

申请号：GB8028139

申请日：1978-10-20

Applicant: INTERLOCK SICHERHEITSSYST ,  INTERFLEX DATENSYST

IPC: G06K7/016 ,  G06K7/10 ,  G06K7/14

Abstract: An opto-electronic apparatus is provided for reading data represented on a carrier as patterns of areas which are transparent or opaque to radiation. The apparatus includes at least one reading assembly comprising a radiation source and associated receiver. The carrier is guided through the reading assembly or assemblies for reading thereby, the outputs of the reading assemblies being connected to electronic data processing means. There is provided means for operating the reading assemblies in two different modes. In a first standby mode, only one reading assembly is supplied at intervals with short low power pulses. In a second reading mode, all the reading assemblies receives high power pulses adjusted to the maximum reading speed. The lower power pulses occur at a lower frequency than the high power pulses and at such a frequency that the assemblies can be switched into the high power mode before the data patterns have reached the reading assembly.

公开(公告)号：DE2747076A1

公开(公告)日：1979-04-26

申请号：DE2747076

申请日：1977-10-20

Applicant: INTERFLEX DATENSYST

Inventor： GRANHOLM CARL WALTER

IPC: G06K7/016 ,  G06K7/14 ,  G06K7/12

Abstract: An opto-electronic apparatus for reading out preferably coded information contained on a data carrier with high reliability and free of disturbances even when the insertion speed of the information carrier into an associated opening of the reading apparatus depends only on the arbitrary actuation by the operating person, including retrograde motions or stoppage of the information carrier. The apparatus is especially adapted to the read-out of information coded in a card as a pattern of alternating transparent and opaque areas which are subjected to infrared radiation whose passage or non-passage is detected by suitable detectors. The process of reading out the information contained in the data carrier is timed or clocked by a clock cycle generated from a clock trackcontained in the data carrier itself. The apparatus includes a program memory which contains stored information regarding the clock cycle to be expected and is thus able to read out the information contained on the data carrier without automatic mechanical transporting devices for passing the data carrier past the reading assemblies. Even if the manual insertion of the card of the data carrier includes generally unintended reverse motions, the circuit remembers the last clock cycle and continues to read the data at that point during subsequent forward motion, provided the reverse motion has not been excessive. The apparatus also provides the readout and status determination during standby operation with low power sensing pulses and a switchover to data read-out in the presence of the data carrier with high powered pulses of a current density which exceeds that normally acceptable to the light sources under continuous operation. In a preferred embodiment, the coded information on the data carrier is so distributed that, during the read-out of these data, a local clock sequence is generated automatically from the data itself without the requirement for a separate timing track.