NL16724C - - Google Patents

Info

Publication number: NL16724C
Authority: NL; Netherlands

Application number

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.)

1925-02-27

Publication of NL16724C publication Critical patent/NL16724C/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
- G10K11/025—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators horns for impedance matching

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Health & Medical Sciences (AREA)
Otolaryngology (AREA)
Signal Processing (AREA)
Multimedia (AREA)

NL16724D 1925-02-27 NL16724C (cs)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR594208T		1925-02-27

Publications (1)

Publication Number	Publication Date
NL16724C true NL16724C (cs)

Family

ID=8965997

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL16724D NL16724C (cs)	1925-02-27

Country Status (2)

Country	Link
FR (1)	FR594208A (cs)
NL (1)	NL16724C (cs)

0
- NL NL16724D patent/NL16724C/xx active
1925
- 1925-02-27 FR FR594208D patent/FR594208A/fr not_active Expired

Also Published As

Publication number	Publication date
FR594208A (fr)	1925-09-08

Publication	Publication Date	Title
AT108862B (cs)	1928-02-10
BE331838A (cs)	1926-02-27
AT107490B (cs)	1927-10-10
AT108056B (cs)	1927-11-25
AT108860B (cs)	1928-02-10
AT108864B (cs)	1928-02-10
AT108975B (cs)	1928-02-25
AT99321B (cs)	1925-02-25
BE331135A (cs)	1925-12-31
BE325119A (cs)	1925-06-19
BE329122A (cs)	1925-10-15
BE330611A (cs)	1925-12-31
BE331453A (cs)
BE331583A (cs)
BE254316A (cs)
BE256737A (cs)
BE268047A (cs)
BE328518A (cs)
BE330822A (cs)
BE249130A (cs)
BE331348A (cs)
BE331402A (cs)
BE331413A (cs)
BE331444A (cs)
BE248750A (cs)