Sound transmission method for data way system

Details Sound transmission method for data way system Sound transmission method for data way system

1986-05-13

1989-05-02

Griffin, Robert L.

Communications: electrical

Continuously variable indicating

With meter reading

34082508, 34082552, 34082551, 381 77, G05B 2302, H04Q 500

Patent

active

048272566

ABSTRACT:
A sound transmission method is carried out in a data way system comprising at least one controller, more than two data input modules and more than two data output modules all of which are connected to one another by a series of data transmission lines making a single loop while linking them together. The data input modules and output modules each are given an address. One or some of the data input modules are constructed as a sound input module or modules, while one or some of the data output modules are constructed as a sound output module or modules. The controller specifies the addresses of the sound input and output modules more frequently than those of the other data input and output modules.

REFERENCES:
patent: 3529293 (1970-09-01), Sullivan et al.
patent: 3559177 (1971-01-01), Benson
patent: 4530045 (1985-07-01), Petroff
patent: 4595921 (1986-06-01), Wang et al.
patent: 4683531 (1987-07-01), Kelch et al.
Farr et al., IBM Technical Disclosure Bulletin; vol. 20; No. 2; Jul. 1977; p p. 773-774.

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