← Back to Patent Explorer
EP0372965A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

A two-piece radio telephone

Assignee: Nokia Oyj
•
Filing: 1989-12-07
•
Granted: —
•
Expires: 2009-12-07
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The power and weight of a radio telephone can be modified by connecting the same basic unit (1) to a desired power and transmitting unit (2 or 4). The signals received and transmitted between the units (1 and 2 or 4) pass apart from each other.

Inventors

  • 👤 Lauri Levanto

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 11:26
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04B1/3827; H04B1/3877

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 93 words
A two-piece radio telephone, comprising a separate first and second unit, characterised in that the first unit (1) comprises low power units, which include a logic unit, a receiver and a radio frequency generating unit, the second unit (2 or 4) comprises a power supply from accumulators or an external power supply, a transmitter and a separating unit for separating the output and the input signals; whereby the received rf signal and the low power transmitted rf signal pass apart from each other between the first unit (1) and the second unit (2).
Claim 2
Dependent Claim 93 words
A two-piece radio telephone, comprising a separate first and second unit, characterised in that the first unit (1) comprises low power units, which include a logic unit, a receiver and a radio frequency generating unit, the second unit (2 or 4) comprises a power supply from accumulators or an external power supply, a transmitter and a separating unit for separating the output and the input signals; whereby the received rf signal and the low power transmitted rf signal pass apart from each other between the first unit (1) and the second unit (2).
Claim 3
Dependent Claim 44 words
A two-piece radio telephone according to claim 1, characterized in that the transmitter of the second unit (4) is a low power transmitter and said second unit (4) can be directly connected to said first unit (1) without the need for a connecting cable.
Claim 4
Dependent Claim 58 words
A two-piece radio telephone according to claim 1, characterized in that the transmitter of the second unit (2) is a high power transmitter and said second unit (2) is connected to said first unit (1) by means of a connecting cable (3), in which the transmitted rf signal and the received rf signal pass apart from each other.
Claim 5
Dependent Claim 40 words
A two-piece radio telephone according to claim 1, characterized in that different second units (2 or 4) can be connected to the same first unit (1), thus enabling the transmission power and weight of the radio telephone to be modified.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag