James P. Morris - Sunrise FL Karl R. Weiss - Sunrise FL Jaime A. Borras - Hialeah FL
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H04B 700
US Classification:
455 69
Abstract:
The initial transmission (108) from one subscriber to another subscriber is transmitted at full power. The receiving unit measures the received signal strength and returns a code (118) representing this value in a reply message (114), which is also transmitted at full power. The signal strength of the reply message is determined and may be sent to the replying subscriber unit in a subsequent transmission (122), which may now be accomplished at a reduced power level. Thereafter, both subscribers may modify their respective transmitter power levels during subsequent transmission to minimize battery consumption and maximize the operational life of the subscriber unit.
A method and an apparatus for controlling a speaker mute time is provided to transmit an information message from a first communication device to a second communication device. In response to receiving the information message, the second communication device controls the duration of its speaker mute time.
Timothy A. Monahan-Mitchell - Deerfield Beach FL Karl R. Weiss - Plantation FL
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
G06K 1116
US Classification:
364514
Abstract:
In a radio transceiver having a microcomputer (11) that controls various hardware-dependent components (220) and functions (240) that form a plurality of radio control processes, a method and apparatus for executing the radio control processes includes providing the microcomputer (11) with a plurality of virtual sources (272). The virtual sources (272) are for collecting and distributing data (440) generated by the hardware-dependent components (220) and functions (240) in the radio transceiver. A plurality of hardware-independent tasks (292, 392) for executing the radio control processes are also provided by the microcomputer. A distribution controlling interface standard (228) for controlling which hardware-independent task (292, 392) will receive from which virtual source (272) is further provided by the microcomputer (11).
A clock recovery system for radio communication inserts a synchronization signal (102) at a frequency of 1/2 the baud rate, at the spectral null of an MSK data signal (108), which is also at 1/2 the baud rate, for later retrieval. Hence, in a transmitter-encoder (100), an MSK generator (106) generates an MSK digitally modulated data signal (108e) having a baud rate and a spectral null at 1/2 the baud rate. A synchronization clock generator (104) generates a synchronization signal (102e) having a frequency at 1/2 the baud rate. This frequency at 1/2 the baud rate corresponds to the spectral null of the MSK digitally modulated data signal (108e). A transmitter transmits the synchronization signal (102e), at the spectral null of the data signal (108e), together (112) with the MSK digitally modulated data signal (108e). On the other end, a receiver-decoder (200) recovers (214) the synchronization signal (102d) and demodulates (212) the MSK digitally modulated data signal (108d) as a function of the synchronization signal (102d).
This tone decoder utilizes three correlators for detecting the presence of a desired tone signal. A main correlator correlates to the desired tone frequency, while two side correlators are used to correlate to frequencies above and below the desired tone frequency. Tone detection is indicated by correlation of the main correlation and absence of correlation by the side correlators. Improved bandwidth and/or correlation time is achieved as compared to utilizing a single correlator.
Virtual Radio Interface And Radio Operating System For A Communication Device
Jerry L. Sandvos - Davie FL Timothy A. Monahan-Mitchell - Deerfield Beach FL Karl R. Weiss - Plantation FL
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
G06F 900
US Classification:
395700
Abstract:
A communication device (100) includes three levels and at least one feature and at least one protocol for communicating with other communication devices. The three levels are high level or user ergonomics (302), common level or feature/protocol (310), and low level or hardware platform (318). The feature/protocol level (310) is adapted for controlling the at least one feature and the at least one protocol. The user ergonomics (302) includes a first interface (304) coupled to the feature/protocol level (310) for allowing the user ergonomics level (302) to change without affecting the feature/protocol level (310). The, hardware platform (318) includes a second interface coupled to the feature/protocol level (310) for allowing the hardware platform (318) to change without affecting the feature/protocol level (310) or the user ergonomics level (302).
Method Of Communications Between And Within Virtual Radio Interface Standard Layers
Karl R. Weiss - Plantation FL Karen J. Ensor - Plantation FL Marc S. Desruisseaux - Plantation FL Sanjay Wanchoo - Lauderhill FL Jerry L. Sandvos - Davie FL Timothy A. Monahan-Mitchell - Deerfield Beach FL
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
G08C 1700
US Classification:
364514
Abstract:
In radio processing control (11), a plurality of architectural layers (270, 290, 390) separate at least one of a plurality of tasks (272) from another task (292). For communicating among the tasks within (274, 276, 278) or across (229, 239) the layers, a buffer (300) for each of the tasks is provided by a communication resource (602). A messaging protocol for passing information from the tasks is defined to be a predefined information packet having a header (700) preceding any optional data. A flag portion (701) of the header designates the information as intralayer or interlayer. If the information is interlayer (229, 239), an identifier portion (703, 704) of the header identifies the source (272) of the information and an operation portion (702) identifies an operation code.
Karl Weiss (1978-1982), Natalie Edwards (1993-1997), Stephen Budihas (1980-1984), Frank Lukitsch (1999-2003), Bonita Joyner (2003-2007), Leo Stickland (1992-1996)
Dr. Karl Weiss, chief of infectious diseases at the Jewish General Hospital, said themajority of people infected do not develop symptoms, or if they do, the symptoms aren't significant enough to seek medical consultation. Even then, doctors may not test for the virus, he added.