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.)
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Grifoll & Ingles S L
Original Assignee
Grifoll & Ingles S L
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Publication date
Application filed by Grifoll & Ingles S LfiledCriticalGrifoll & Ingles S L
Priority to ES62698UpriorityCriticalpatent/ES62698Y/en
Publication of ES62698UpublicationCriticalpatent/ES62698U/en
Application grantedgrantedCritical
Publication of ES62698YpublicationCriticalpatent/ES62698Y/en
Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves
(AREA)
Abstract
Group pickup for intercoms, which is essentially characterized by having, installed in accordance with alignments of suitable orientation, a plurality of sensors, all connected with the corresponding electrical circuit and located at a point of the appropriate box of the apparatus accessible to sound waves , all for the purpose of covering a wide area of acoustic reception independently of the movements of the organ producing the sounds, which are thus received and sent to the emitting apparatus with a practically constant volume. (Machine-translation by Google Translate, not legally binding)
ES62698U1957-10-311957-10-31
Pickup group for intercoms
ExpiredES62698Y
(en)
Improvements in microphones, particularly for duplex installations with speakers and microphone (Machine-translation by Google Translate, not legally binding)
Improvements introduced in the procedures for the increase of resonance in all kinds of watching apparatus (Machine-translation by Google Translate, not legally binding)