BE657879A - - Google Patents
Info
- Publication number
- BE657879A BE657879A BE657879DA BE657879A BE 657879 A BE657879 A BE 657879A BE 657879D A BE657879D A BE 657879DA BE 657879 A BE657879 A BE 657879A
- Authority
- BE
- Belgium
Links
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
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/023—Screens for loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3833—Hand-held transceivers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Transmitters (AREA)
- Casings For Electric Apparatus (AREA)
- Transceivers (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US337347A US3345568A (en) | 1964-01-13 | 1964-01-13 | Transistorized portable radio transmitter-receiver structure |
| US337348A US3306990A (en) | 1964-01-13 | 1964-01-13 | Microphone and speaker structure for miniature receiver and transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE657879A true BE657879A (US06521211-20030218-C00004.png) | 1965-04-30 |
Family
ID=26990650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE657879D BE657879A (US06521211-20030218-C00004.png) | 1964-01-13 | 1965-01-04 |
Country Status (7)
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3763434A (en) * | 1972-03-02 | 1973-10-02 | Motorola Inc | Battery connecting structure for portable device |
| JPS5330897Y2 (US06521211-20030218-C00004.png) * | 1974-05-13 | 1978-08-02 | ||
| US4032844A (en) * | 1974-12-28 | 1977-06-28 | General Research Of Electronics, Inc. | Combination microphone, speaker, and control unit for a radio transceiver |
| US3938618A (en) * | 1975-03-18 | 1976-02-17 | Motorola, Inc. | Speaker grille screen and mounting structure |
| CH642504A5 (en) * | 1981-06-01 | 1984-04-13 | Asulab Sa | Hybrid electroacoustic transducer |
| US4550429A (en) * | 1983-06-03 | 1985-10-29 | Motorola, Inc. | Shock absorbing transducer module |
| US4682363A (en) * | 1985-05-23 | 1987-07-21 | Jerry Goldfarb | Amphibious personal audio system |
| FR2748627B1 (fr) * | 1996-05-07 | 1998-08-07 | Peugeot | Grille de haut-parleur formant cache et vehicule automobile equipe de cette grille |
| US5721787A (en) * | 1997-01-13 | 1998-02-24 | Motorola, Inc. | Speaker porting for a communication device |
| US8213660B2 (en) * | 2006-04-07 | 2012-07-03 | Research In Motion Limited | Shielded microphone for mobile communications device |
| US9807481B2 (en) * | 2014-09-24 | 2017-10-31 | James Thomas O'Keeffe | Smart speaker with multifunctional faceplate and local environment sensing |
| US10755871B2 (en) * | 2014-09-24 | 2020-08-25 | James Thomas O'Keeffe | Smart speaker with interactive speaker grille |
| US10779067B2 (en) * | 2018-12-20 | 2020-09-15 | Motorola Solutions, Inc. | Systems for reducing wind-induced noise and water infiltration in communication devices |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1196562A (en) * | 1915-04-09 | 1916-08-29 | Herbert E Lynch | Telephone instrument. |
| US1201060A (en) * | 1916-05-18 | 1916-10-10 | Internat Callophone Corp | Sound transmitting and reproducing unit. |
| US1460034A (en) * | 1921-08-24 | 1923-06-26 | Telephone Mfg Co Ltd | Telephone transmitter |
| US1772198A (en) * | 1921-07-13 | 1930-08-05 | Andersson Ringhald Per Alfred | Telephone |
| US2485405A (en) * | 1944-04-21 | 1949-10-18 | Stromberg Carlson Co | Dipole microphone |
| FR1273401A (fr) * | 1960-08-26 | 1961-10-13 | Charbonnages De France | Appareil de radiophonie portatif à transistors |
-
1964
- 1964-01-13 US US337348A patent/US3306990A/en not_active Expired - Lifetime
- 1964-12-31 GB GB53010/64A patent/GB1045320A/en not_active Expired
-
1965
- 1965-01-04 BE BE657879D patent/BE657879A/xx unknown
- 1965-01-04 LU LU47715A patent/LU47715A1/xx unknown
- 1965-01-05 FR FR817A patent/FR1419470A/fr not_active Expired
- 1965-01-11 NL NL656500282A patent/NL148760B/xx unknown
- 1965-01-13 DE DEM50472U patent/DE1933666U/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| LU47715A1 (US06521211-20030218-C00004.png) | 1965-03-04 |
| GB1045320A (en) | 1966-10-12 |
| NL6500282A (US06521211-20030218-C00004.png) | 1965-07-14 |
| NL148760B (nl) | 1976-02-16 |
| FR1419470A (fr) | 1965-11-26 |
| US3306990A (en) | 1967-02-28 |
| DE1933666U (de) | 1966-03-03 |
