Title:
【発明の名称】二進―三進変換器
Document Type and Number:
Japanese Patent JP2848623
Kind Code:
B2
Abstract:
For a binary-to-ternary converter fed from a standard TTL supply of 5 V +/- 5%, a minimum 4.75 V supply voltage is available. According to the amplitude requirement of the CCITT Recommendation G703, the positive and negative output pulses should have an amplitude of 2.37 V+/- 10%. A binary-to-ternary converter should be protected against high voltage-pulses from outside. This is achieved by serially connecting a protective resistance to the output. An unacceptable voltage loss will then develop through this arrangement. The binary-to-ternary converter according to the invention satisfies the abovementioned requirements without utilizing a transformer, despite the fact that the overall voltage swing for the ternary output signal corresponds with a higher value than the worst-case 4.75 V supply voltage which is available.
Inventors:
YAN BENEDEIKUTASU FURIITERIKU UIRUHERUMU RUEISU
Application Number:
JP6777289A
Publication Date:
January 20, 1999
Filing Date:
March 22, 1989
Export Citation:
Assignee:
AA TEE EN TEE ANDO FUIRITSUPUSU TEREKOMYUNIKESHIONZU BV
International Classes:
H03M7/06; H03M5/16; H03M5/18; H03M7/14; H04L5/22; (IPC1-7): H03M7/14; H03M5/16
Domestic Patent References:
| JP59108430A | ||||
| JP6454936A | ||||
| JP5315054A | ||||
| JP54107233A |
Attorney, Agent or Firm:
Akihide Sugimura (1 outside)