Telecommunications – Receiver or analog modulated signal frequency converter – Cabinet – housing – or chassis structure
Patent
1988-01-11
1989-11-07
Griffin, Robert L.
Telecommunications
Receiver or analog modulated signal frequency converter
Cabinet, housing, or chassis structure
455351, 361399, 361422, H04B 108
Patent
active
048797596
ABSTRACT:
A paging receiver to which various extra functions may be selectively added. A receiver body of the paging receiver has a miniature and thin configuration and is provided with only a sound type alerting function. Minimum necessary degrees of receiving function, antenna function, speaker function and power psupply function are furnished with in the receiver body. A holder adapted to hold the receiver body is provided with advanced functions a well as a vibrator function and other extra functions. Only when the holder is combined with the receiver body, it allows the receiver to exhibit the advanced functions or the extra functions as desired. In order that the receiver body and the holder may be fixed to each other when combined, a housing of the receiver body and the holder are individually provided with mating portions and electrical connecting terminals.
REFERENCES:
patent: 4325142 (1982-04-01), Nakazawa
patent: 4536925 (1985-08-01), Boothe et al.
patent: 4641370 (1987-02-01), Oyamada et al.
patent: 4653115 (1987-03-01), Holcomb
patent: 4704740 (1987-11-01), McKee et al.
patent: 4754528 (1988-07-01), Lyons et al.
Hayasaka Sigeki
Matsumoto Takeshi
Oyamada Takashi
Griffin Robert L.
Kuntz Curtis
NEC Corporation
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