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:
Nov. 05, 1991
Filed:
Aug. 04, 1989
Stelios J Patsiokas, Plantation, FL (US);
Brian Keith Johnson, Plantation, FL (US);
Pierre E Audet, Oakland Park, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
The identity of a calling subscriber unit (106) is provided to a called subscriber unit(s) (106') by requiring the calling subscriber to identify itself (112) to a central station (102 and 104a-c) and request across to the communicaiton resources. The central station forwards the identity of the calling subscriber to the called subscriber (114), which enables the called subscriber to decide whether to respond to (answer) the call. If the called subscriber responds, an RF communication link between the two subscriber units is established. Conversely, if the called subscriber does not respond (or responds negatively), the calling subscriber unit is provided with a 'Busy' indication. Optionally, the central station may operate as a system-wide message recorder to store messages from calling subscribers for non-responding (Busy) subscribers. In this way, a calling subscriber may leave a message for later retrieval.