TW330361B - The dual module digital transmitter, receiver and sending/receiving device - Google Patents

The dual module digital transmitter, receiver and sending/receiving device

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Publication number
TW330361B
TW330361B TW086104075A TW86104075A TW330361B TW 330361 B TW330361 B TW 330361B TW 086104075 A TW086104075 A TW 086104075A TW 86104075 A TW86104075 A TW 86104075A TW 330361 B TW330361 B TW 330361B
Authority
TW
Taiwan
Prior art keywords
output
dual module
digital
pulse shaping
shaping filter
Prior art date
Application number
TW086104075A
Other languages
Chinese (zh)
Inventor
Tong-Guang Uang
Muh-Tian Shiue
Guang-Huu Hwang
Jeng-Yi Hwang
Original Assignee
Nat Science Council
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nat Science Council filed Critical Nat Science Council
Priority to TW086104075A priority Critical patent/TW330361B/en
Application granted granted Critical
Publication of TW330361B publication Critical patent/TW330361B/en

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Abstract

A dual module digital transmitter, it can switch the two digital communicating systems QAM and VSB, and includes: - Dual module digital modulator includes 1st and 2nd pulse shaping filter. These filters have same phase response during QAM, and have phase orthogonal response during VSB. The 1st and 2nd multiplier are separately coupled with 1st and 2nd pulse shaping filter for multiplied the output of1st and 2nd pulse shaping filter with the wave-carrying signal to output; - Digital-to-analogue converter, is coupled to the output of double mode digital modulator for transferring the output into analogue signal.
TW086104075A 1997-03-31 1997-03-31 The dual module digital transmitter, receiver and sending/receiving device TW330361B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW086104075A TW330361B (en) 1997-03-31 1997-03-31 The dual module digital transmitter, receiver and sending/receiving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW086104075A TW330361B (en) 1997-03-31 1997-03-31 The dual module digital transmitter, receiver and sending/receiving device

Publications (1)

Publication Number Publication Date
TW330361B true TW330361B (en) 1998-04-21

Family

ID=58262617

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086104075A TW330361B (en) 1997-03-31 1997-03-31 The dual module digital transmitter, receiver and sending/receiving device

Country Status (1)

Country Link
TW (1) TW330361B (en)

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