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.)
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AGfiledCriticalSiemens AG
Priority to DE19833323296priorityCriticalpatent/DE3323296A1/de
Publication of DE3323296A1publicationCriticalpatent/DE3323296A1/de
Application grantedgrantedCritical
Publication of DE3323296C2publicationCriticalpatent/DE3323296C2/de
H04M1/00—Substation equipment, e.g. for use by subscribers
H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
Landscapes
Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
Amplifiers
(AREA)
DE198333232961983-06-281983-06-28Schaltungsanordnung fuer eine ueber die teilnehmerleitung gespeiste fernsprechstation wahlweise fuer schwerhoerige
GrantedDE3323296A1
(de)
