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From: miya@nttica.ntt.jp (Hiroshi Miyanaga)
Newsgroups: comp.dsp
Subject: Re: MASH on the new CD players
Message-ID: <2745@nttica.ntt.JP>
Date: 16 Oct 90 11:59:13 GMT
References: <3957.27146ebf@cc.curtin.edu.au>
Sender: news@nttica.ntt.JP
Organization: NTT LSI Laboratories, Kanagawa, Japan.
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In-reply-to: smeekl@cc.curtin.edu.au's message of 11 Oct 90 05:08:15 GMT

In article <3957.27146ebf@cc.curtin.edu.au> smeekl@cc.curtin.edu.au writes:

 >>Does anybody out there in dsp land know about the recently introduced MASH
 >>reconstruction filter(?) in the newer generation CD players ???

 MASH was invented here at NTT (Nippon Telegraph and Telephone Corp.) LSI 
Laboratories. The following three papers were good to read. 

(1) Y. Matsuya, et al "A 17-bit Oversampling D-to-A Conversion 
         Technology Using Mutistage Noise Shaping"
    IEEE Jouranal of Solid-State Circuits Vol.24, No.4, August 1989, 
    pp.969-975.

(2) K. Uchimura, et al,"VLSI A-to-D and D-to-A converters with multi-stage
         noise shaping modulators," ICASSP86, pp.1545-1548.

(3) Y. Matsuya, et al, "A 16-bit oversampling A-to-D conversion technology 
        using triple-integration noise shaping," 
    IEEE Journal of SC, Vol.SC-22, pp.921-929, Dec., 1987.

----------------
Hiroshi Miyanaga

NTT LSI Labs, Kanagawa, Japan
miya%nttica.ntt.jp@relay.cs.net