United States Patent D9]
[ii] 4,419,668  Dec. 6, 1983
 COMBINED TONE ONLY AND TONE VOICE MULTIPLE ALERT PAGER
 Inventor: Charles J. Ganucheau, Jr., North Lauderdale, Fla.
 Assignee: Motorola, Inc., Schaumburg, 111.
 Appl. No.: 305,571
 Filed: Sep. 25,1981
 Int. CI.3 G08B 5/22
 U.S. CI 340/825.44; 340/825.48;
 Field of Search 340/825.44, 825.45,
340/825.46, 825.47, 825.48, 311.1; 179/2 EC;
455/31, 36, 38, 352, 228
 References Cited
U.S. PATENT DOCUMENTS
3,742,481 6/1973 Nickerson 340/825.48
4,019,142 4/1977 Wycoff 455/38
4,181,893 1/1980 Ehmke 340/825.48
4,249,165 2/1981 Mori 340/825.44
Motorola Theory/Maintenance Manual for BPR 2000
Decimal Digital Radio Pager-Feb. 1981.
Motorola Service Manual for BPR 2000 Decimal Digi-
tal Radio Pager-Mar. 1981.
Primary Examiner—James J. Groody
Attorney, Agent, or Firm—James W. Gillman; Phillip H. Melamed; Joseph Downey
A combined tone only and tone and voice multiple alert pager is provided which implements separate tone only and tone and voice alert modes in response to the reception of different predetermined signal codes. The pager also includes an audio monitor switch for monitoring audio frequency information received by the pager. During the tone only alert mode the operation of the audio monitor switch is inhibited and only a distinct audible alert tone is provided by the pager. During the tone and voice alert mode, a different audible alert tone is provided and this is automatically followed by audible voice information. Actuation of the audio monitor switch is also utilized to terminate the audible alert tone in the tone only mode whereas actuation has no effect on terminating the audible alert tone in the tone and voice alert mode. Release of manual pressure from the audio monitor switch is utilized to terminate the tone only and tone and voice alert modes but the tone and voice alert mode can only be terminated by operation of the audio monitor switch after the pager starts to provide the subsequent audio frequency information which automatically follows the tone and voice audible alert tone.
15 Claims, 2 Drawing Figures