Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent
1986-04-24
1988-10-04
Isen, Forester W.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
381 90, 381205, H04R 102
Patent
active
047760184
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a removable sound or/and display apparatus.
It is known to wire shops and public places for sound by means of loudspeakers disposed at certain places and broadcasting the same music and the same messages at the same time by means of rather complex and centralized installations, necessitating cumbersome and unsightly cables.
It is also known, to illuminate locally certain parts of premises by means of floodlights or spotlights fixed to tracks allowing a certain latitude in positioning. These means of lighting consist of a lamp, fixed and supplied by electrical current by means of a screw or bayonet fitting, integral with an articulated sliding device mounted on a fixed track fixed to the ceiling or against the walls. This lamp is generally mounted in a housing which reduces the dispersion of the light rays and concentrates them on a precise point.
It is also known to mount, in place of the cigar lighter of a vehicle, a special socket which may be fitted with clips permitting the supply of electrical current to a lamp or an apparatus.
The object of the invention is to utilize the same means of fixing and supply for sound and possibly visual display as for lighting or for the supply of electricity to apparatuses; that is, by utilizing the infrastructure of the localized lighting, as described in the preceding paragraph, or the cigar lighter of a vehicle, and to individualize the sound or/and the display, according to the place, by means of a removable apparatus specially designed for this use and this mode of fixing and supply.
The main features of the sound or/and display apparatus according to the invention are that it is fixed and connected to the mains supplies by means of a single device, that it is housed in the space usually reserved for a light bulb or the cigar lighter of a vehicle and that it is switched on and adjusted by means of collars or buttons situated on the body of the apparatus.
The device which makes it possible to simultaneously ensure fixing and connection to the mains supplies consists of a screw or bayonet system analogous or identical to that usually used to fix and supply electricity to light bulbs, or of a system with crocodile clips analogous or identical to that used on the cigar lighter of vehicles.
The loudspeaker or/and the display screen are mounted on the end opposite the device for fixing and connection.
In a particular embodiment, the loudspeaker, the enclosure or/and the display screen are separate from the apparatus and connected to it by wires and sockets.
The power-on and adjusting collars or buttons are situated just above the loudspeaker in the case of an apparatus designed solely for sound, and on the front part of it when it is designed both for sound and for visual display.
Its receiving frequency may be regulated to the transmission frequency of a central transmitter situated in the same premises or the same establishment for purposes of broadcasting of music and of messages.
It may be combined with a lamp which may be switched on at will, independently of the apparatus.
This apparatus is entirely sealed.
Thus, as may be seen, this apparatus will, in its most general use, be able to be mounted at will in a floodlight or spotlight, in order to constitute a particular sound end lighting device with the other floodlights or spotlights reserved soley for lighting, situated close by on the same supporting track or on neighbouring tracks, or, in a more particular use, it may be mounted in place of the cigar lighter of a vehicle.
Other features and advantages will appear in the following description of a sound installation according to the invention provided by way of example with regard to the appended drawing representing the apparatus replacing a light bulb in a spotlight fixed on a track.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a preferred embodiment of the invention.
FIG. 2 is a side, perspective, drawing of another embodiment of the invention; and
FIG. 3 is a side, perspective, partially schematic drawing of yet another embodimen
REFERENCES:
patent: 2924661 (1960-02-01), Messeas
patent: 3911221 (1975-10-01), Wong
patent: 4061971 (1977-12-01), Barrons
patent: 4434509 (1984-02-01), Schrepel
patent: 4528620 (1985-07-01), Weber
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