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Telenorma Telefonbau und Normalzeit GmbH Patents
Telenorma Telefonbau und Normalzeit GmbH
Frankfurt am Main, DE
No. of patents:

Patent Number Title Of Patent Date Issued
5006920 Electrical components April 9, 1991
An electronic modular unit such as an integrated semiconductor unit is disclosed. The inventive electronic unit can be bonded to a support or to another modular unit. For this purpose, the inventive unit is provided with projections or recesses so that units can mate with one another. Th
4991167 Voice controlled attenuation adjustment in telephone transmission circuits February 5, 1991
A process and apparatus for a voice controlled attenuation adjustment in telephone transmission circuits is disclosed. Signals in the sending and receiving directions are decomposed into sub-band signals in a set of frequency sub-bands. Each frequency sub-band is associated with an a

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