Title:
【発明の名称】多重ステージデジタル信号乗算加算装置
Document Type and Number:
Japanese Patent JP2605039
Kind Code:
B2
Abstract:
Multistage digital signal multiplying and adding apparatus suitable for a multistage filter comprises a plurality of addition stages (l,2,N) each having adding devices (ll,l2,l3) for forming a succession of partial products together with selectors (34) operable in a first condition to connect sum and carry outputs of the adding devices within a stage to further adding devices within the stage or a second condition to supply outputs to a further stage, said selectors (34) being operable to change condition without resolving carry signals in one stage through all bit positions of that stage.
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Inventors:
Mohammad, Hossein, Yasaye
Antony, David, King-Smith
Cleve, Malcolm, Dyson
Antony, David, King-Smith
Cleve, Malcolm, Dyson
Application Number:
JP12566987A
Publication Date:
April 30, 1997
Filing Date:
May 22, 1987
Export Citation:
Assignee:
SGS-Thomson, Microelectronics, Limited
International Classes:
H03H15/00; G06F7/544; G06F17/10; H03H17/02; (IPC1-7): H03H17/02; G06F17/10; H03H17/02
Other References:
【文献】欧州特許253476(EP,B)
【文献】欧州特許253475(EP,B)
【文献】欧州特許253475(EP,B)
Attorney, Agent or Firm:
Kazuo Sato (3 others)