The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 1994
Filed:
Jun. 29, 1992
Stanley Knapczyk, Justice, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A radio communication system (600) having at least two radio interface devices (602) requires an access protocol for accessing a common information bus (605). The bus (605) is necessary for sending information to a communication system controller (601). A first of the interface devices periodically polls the common information bus (605) to determine whether or not it is available for sending information to the communication system controller (601). When available, the device acquires access to the bus (605), and sends information to the controller (601), via the information bus (605). The device then releases the bus (605) at a subsequent polling period for that device, thereafter allowing a second interface device to gain access to the bus (605). The foregoing sequence ensures that each of the interface devices (602) will, within a predetermined time, poll the bus (605) and acquire it, as necessary, for sending information to the system controller (601).