Precessing display pager
US3976995A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 22, 1975 |
| Grant date | Aug 24, 1976 |
| Priority date | — |
| Expiry date | May 22, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B5/226
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A hand held pager is disclosed in which a transmitted message is displayed in alpha/numeric form by a precessing display which moves the received message across the display in a continuous fashion so that the display need be only large enough to present a relatively small portion of the total message at any given time. In one embodiment a dot matrix LED display is used and is driven by a recirculating shift register memory to provide the precession of the message as a result of the recirculation. In another embodiment the pager may also include a message entry section in which the precessing display is used to present and edit the message prior to transmission either via an acoustic telephone link to a remote transmitter, or directly from a transmitter carried in the pager/encoder package.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.