用TTL计数器和译码器组成数传MODEM

doi:10.3863/j.issn.1000-2634.1989.03.014

西南石油大学学报(自然科学版) ›› 1989, Vol. 11 ›› Issue (3): 105-110.DOI: 10.3863/j.issn.1000-2634.1989.03.014

用TTL计数器和译码器组成数传MODEM

陈伟郭守清

(管理工程系)

收稿日期:1988-12-04 修回日期:1900-01-01 出版日期:1989-08-20 发布日期:1989-08-20
通讯作者: 陈伟

USING COUNTER AND DECODER OF TTL TO CONSTITUTE MODEM

Chen Wei Guo Shou-qing

(Department of Management Engineering)

Received:1988-12-04 Revised:1900-01-01 Online:1989-08-20 Published:1989-08-20
Contact: Chen Wei

摘要/Abstract

摘要： 根据定时式脉冲鉴须原理，本文给出一种适用于计算机无线电通信的调制解调器，该电路用TTL计数器和译码器产生定时信号，实现须移健控调制和解调，其数据传送速率为1200bps

关键词: 调制解调器脉冲鉴须计数器译码器

Abstract: This paper gives one MODEM that is applicable for computer radio
communication according to the principle of timing pulse frequency discri-
urination.Counters and decoders of TTL are used in the circuit to produce
timing signal£¬to achieve modulation and demodulation of frequency-shift
keying .The data transfer rate of the MODEM is 1200 bps,

Key words: MODEM(Modulator-demodulator) Pulse frequency

陈伟郭守清. 用TTL计数器和译码器组成数传MODEM[J]. 西南石油大学学报(自然科学版), 1989, 11(3): 105-110.

Chen Wei Guo Shou-qing. USING COUNTER AND DECODER OF TTL TO CONSTITUTE MODEM[J]. 西南石油大学学报(自然科学版), 1989, 11(3): 105-110.

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用TTL计数器和译码器组成数传MODEM

USING COUNTER AND DECODER OF TTL TO CONSTITUTE MODEM

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