公开(公告)号：CA2115842C

公开(公告)日：1997-12-30

申请号：CA2115842

申请日：1993-06-18

Applicant: KOREA TELECOMMUNICATION

Inventor： JOO WOON YONG ,  YOON JE-ONG NAM ,  JIN BYUNG WOOK ,  KIM EUN HO

IPC: H04M17/00 ,  H04M3/24 ,  H04M17/02

Abstract: A coin/credit operated public telephone is capable of making local, toll, and international calls using coins, credit card, or IC card and also of making a voice announcement regarding its operation method to the caller through a handset (1). Moreover, it provides graphic/character information through the LCD (10) and can transmit fault status that has been detected as a result of a highly reliable self-diagnosis carried out by receiving control signals from a remotely located central management system.

公开(公告)号：DE4422682A1

公开(公告)日：1995-01-05

申请号：DE4422682

申请日：1994-06-28

Applicant: KOREA TELECOMMUNICATION

Inventor： KWON SOON HONG ,  KIM EUN HO ,  JIN BYUNG WOOK

IPC: G06K19/07 ,  G06K19/00 ,  G06K19/073 ,  G07F7/00 ,  G07F7/08 ,  H04M15/00 ,  H04M17/00

Abstract: Prepaid card, used in public telephones, with an integrated circuit which is capable of preventing increasing the usable amount of money and in the process of minimising the capacity of its memory. The prepaid card with an integrated circuit is controlled in that an input-output stage of the card is compelled to receive a new usable amount of money and an instruction to communicate from a public telephone, in that it is determined whether the instruction to communicate which is received from the input-output stage is a command to update the usable amount of money stored in a memory of the card, in that a comparator, with which the card is equipped, is compelled to compare the new usable amount of money with the usable amount of money which is stored in the memory, and in that an updating of the usable amount of money which is stored in the memory is controlled on the basis of the result of the comparison.

公开(公告)号：DE69309649D1

公开(公告)日：1997-05-15

申请号：DE69309649

申请日：1993-06-18

Applicant: KOREA TELECOMMUNICATION

Inventor： KWON SOON HONG ,  KIM EUN HO ,  JIN BYUNG WOOK ,  JOO WOON YONG

IPC: G07D3/00 ,  G07D3/04 ,  G07D13/00 ,  G07F5/24

Abstract: PCT No. PCT/KR93/00050 Sec. 371 Date Jun. 27, 1994 Sec. 102(e) Date Jun. 27, 1994 PCT Filed Jun. 18, 1993 PCT Pub. No. WO94/00828 PCT Pub. Date Jan. 6, 1994A coin treatment apparatus is disclosed that includes structure for selecting the inserted coins based upon their size, in accordance with their specific currency units, and transferring the coins to a receiving space. Once in the receiving space, coins of the correct currency unit are moved to their respective receiving containers within a receiving box. Coins that are not of the correct currency unit are transferred to a separate receiving space and discharged from the apparatus.