Dual port memory communication for a radio frequency device and a personal computer
US5423086A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 1992 |
| Grant date | Jun 6, 1995 |
| Priority date | — |
| Expiry date | Oct 19, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/022
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A selective call receiver (130) receives radio transmitted messages and stores the received messages such that the messages may be simultaneously accessed from that memory by another device. The selective call receiver comprises an antenna (202) for receiving the transmitted messages, the antenna (202) being coupled to a receiver module (204) for recovering the messages. A decoder (206) is coupled for receiving the messages from the receiver module (204). A controller (212) is coupled for determining whether the recovered message is addressed to the selective call receiver (130). A dual port RAM (208) is coupled to the controller (212) via a first address and data bus for storing the messages addressed to the selective call receiver (130), and the dual port RAM (208) has a second address and data bus for providing simultaneous access to another device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.