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JPS54145467A - Generator for pcm signal - Google Patents

Generator for pcm signal

Info

Publication number
JPS54145467A
JPS54145467A JP5427778A JP5427778A JPS54145467A JP S54145467 A JPS54145467 A JP S54145467A JP 5427778 A JP5427778 A JP 5427778A JP 5427778 A JP5427778 A JP 5427778A JP S54145467 A JPS54145467 A JP S54145467A
Authority
JP
Japan
Prior art keywords
signal
converter
pcm
analog signal
bits
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP5427778A
Other languages
Japanese (ja)
Inventor
Yasuhiro Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP5427778A priority Critical patent/JPS54145467A/en
Publication of JPS54145467A publication Critical patent/JPS54145467A/en
Pending legal-status Critical Current

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  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

PURPOSE: To make it possible to use an A-D converter for a small number of bits and also to generate a normal PCM signal by A/D-converting the differential signal of an analog signal and by accumulating it.
CONSTITUTION: Analog signal S1 is sampled by S/H circuits 2a and 2b respectively and differential analog signal S4 is A/D-converted 3 by a digital PCM system as the word goes. Since the above-mentioned signal S4 has its dynamic range narrower than that of signal S1, a converter for a small number of bits can be used. Next, SUM7 accumulates sequentially signals of converter 3 and outputs a numeral signal equivalent to the accumulation value at constant intervals of time. In this way, normal PCM signals can be obtained at terminal 4. Even if an inexpensive A/D converter is used, therefore, an analog signal with the broad dynamic range can be converted into a PCM signal.
COPYRIGHT: (C)1979,JPO&Japio
JP5427778A 1978-05-08 1978-05-08 Generator for pcm signal Pending JPS54145467A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5427778A JPS54145467A (en) 1978-05-08 1978-05-08 Generator for pcm signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5427778A JPS54145467A (en) 1978-05-08 1978-05-08 Generator for pcm signal

Publications (1)

Publication Number Publication Date
JPS54145467A true JPS54145467A (en) 1979-11-13

Family

ID=12966067

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5427778A Pending JPS54145467A (en) 1978-05-08 1978-05-08 Generator for pcm signal

Country Status (1)

Country Link
JP (1) JPS54145467A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6140043U (en) * 1984-08-18 1986-03-13 パイオニア株式会社 Differential A/D converter
JP2012532548A (en) * 2009-07-07 2012-12-13 シーメンス アクチエンゲゼルシヤフト Pressure wave recording method and reproducing method using direct quantization

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50146207A (en) * 1974-04-18 1975-11-22
JPS50146257A (en) * 1974-05-13 1975-11-22
JPS52100965A (en) * 1976-02-20 1977-08-24 Hitachi Ltd Delta modulator
JPS52100963A (en) * 1976-02-20 1977-08-24 Hitachi Ltd 1-bit encoder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50146207A (en) * 1974-04-18 1975-11-22
JPS50146257A (en) * 1974-05-13 1975-11-22
JPS52100965A (en) * 1976-02-20 1977-08-24 Hitachi Ltd Delta modulator
JPS52100963A (en) * 1976-02-20 1977-08-24 Hitachi Ltd 1-bit encoder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6140043U (en) * 1984-08-18 1986-03-13 パイオニア株式会社 Differential A/D converter
JP2012532548A (en) * 2009-07-07 2012-12-13 シーメンス アクチエンゲゼルシヤフト Pressure wave recording method and reproducing method using direct quantization

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