Abstract: A portable communication device assembly comprises a first communication device housing (12), a second communication device housing (14), and a snap retainer (40) for interconnecting the housings (12 and 14).

Abstract: A communication device (100) operates in first and second modes of operation including a dispatch mode of operation and a telephone mode of operation. The device (100) includes a main body (124) having a top surface (126) and a cover (102). The cover 102 selectively moves between at least a first position wherein at least a portion of the top surface (126) is covered to provide for selective operation in the dispatch mode and at least a second position wherein the top surface (126) is exposed to provide for selective operation is the telephone mode of operation. The cover (102) includes a see through section (108) covering at least a portion of the display section (114) when the cover (102) is in the first position in order to protect the display section (114) and simultaneously provide access thereto. The cover (102) also include through access keys (106) which provide access to the keypad (116) even when the cover (102) is closed.

Abstract: A communication device (100) operates in first and second modes of operation including a dispatch mode of operation and a telephone mode of operation. The device (100) includes a main body (124) having a top surface (126) and a cover (102). The cover 102 selectively moves between at least a first position wherein at least a portion of the top surface (126) is covered to provide for selective operation in the dispatch mode and at least a second position wherein the top surface (126) is exposed to provide for selective operation is the telephone mode of operation. The cover (102) includes a see through section (108) covering at least a portion of the display section (114) when the cover (102) is in the first position in order to protect the display section (114) and simultaneously provide access thereto. The cover (102) also includes through access keys (106) which provide access to the keypad (116) even when the cover (102) is closed.

Abstract: A multiple substrate mounting frame (104) includes first (132) and second (130) surfaces and a plurality of windows or cavities (106-112). A set of substrates having electrical circuitry (114-120) are attached and electrically connected to the first surface (132) of the mounting frame (104). The second surface (130) can then be electrically interconnected to a mother board (102). A leadless surface mountable assembly for multiple die (100) includes the mounting frame (104) which receives a plurality of substrates (114-120) and electrically interconnects them to each other and/or to a mother board (102). A heat sink (122) can be provided if the die (134, 124) generate too much heat.

Abstract: An SCR (Selective Call Receiver) (16) that operates in a satellite communication system automatically initiates a re-registration procedure when it roams from one message delivery area (10) to another message delivery area (12). This is accomplished by the SCR (16) determining its present location, determining the distance which it may have roamed from a known previous location and, if that distance exceeds a given distance, initiating the re-registration procedure.

Abstract: A communication device (100) operates in first and second modes of operation including a dispatch mode of operation and a telephone mode of operation. The device (100) includes a main body (124) having a top surface (126) and a cover (102). The cover 102 selectively moves between at least a first position wherein at least a portion of the top surface (126) is covered to provide for selective operation in the dispatch mode and at least a second position wherein the top surface (126) is exposed to provide for selective operation is the telephone mode of operation. The cover (102) includes a see through section (108) covering at least a portion of the display section (114) when the cover (102) is in the first position in order to protect the display section (114) and simultaneously provide access thereto. The cover (102) also include through access keys (106) which provide access to the keypad (116) even when the cover (102) is closed.

Abstract: A portable communication device assembly comprises a first communication device housing (12), a second communication device housing (14), and a snap retainer (40) for interconnecting the housings (12 and 14).

Abstract: A method of transmitting call information includes transmitting (201), within a first cell (105), call information relating to a call taking place within the first cell (105) and transmitting (203), within a second cell (103), the call information relating to the call taking place within the first cell (105). Alternatively, the method includes transmitting (201), within a first cell (105), call information relating to a first call taking place within the first cell (105) and transmitting (205), within the first cell (105), call information relating to a second call taking place within the second cell (103).

Abstract: An antenna assembly includes a straw having a substantially linear passageway and a helix base coil with an angled tapered guide, the passageway having a width wider than the widest portion of the angled tapered guide. An antenna element has a stopper portion and a straw. For a vertical retraction and a slanted extension, the antenna element is movable between a slanted position wherein the antenna element is inclined from the housing when the stopper of the antenna element is positioned inside the angled tapered guide of the base coil and a retracted position substantially within the straw inside the radio housing wherein the antenna element is retracted vertically within the straw.

Abstract: A hinge pin assembly for a communication device (100) includes a partially assembled hinge base (105). The base (105) has a receiving receptacle (148), an edge (153) of the receiving receptacle, and a socket (160) having a wall (164). A hinge body member (125) has a first opposed surface (123) and a second opposed surface (124), and an aperture (126) extending from the first opposed surface to the second opposed surface, a side (128) adjoining the first and second opposed surfaces and a slot (141) cut into the side extending from the first opposed surface to the second opposed surface.

Abstract: A hinged flip assembly includes a door cover (120) having a chamber (214) and a hub (122) for rotating along a hinge mechanism (133). A transducer (206) is disposed in the chamber (214). At least one wire (202) is coupled (222) through the hub (122) of the door cover (120) for connecting to the transducer (206). A wire connector (204) terminating the at least one wire (202) and the wire connector (204) is also coupled (222) through the hub (122).

Abstract: A belt clip (100) attaches to a battery housing of a communication device to be worn by a user. The belt clip (100) includes a base (104) and a flexible spring loaded latch (106) having an opening. The base (104) is comprised of a pair of rails (108). The pair of rails (108) attach to a battery housing (116) via a pair of undercuts (120). The belt clip (100) is prevented from moving due to the opening of the latch slipped and hooked over a ramped post (124) as the belt clip is slid, from the bottom to the top of the battery, through the pair of undercuts (120) formed by a pair of protrusions that are integrally raised from the top surface of the slim body on opposed sides of the ramping post (124) for providing a belt clip guiding slot. The sliding action is continued, within the slot, until the latch is pressed against and mounted on the ramping post (124).

Abstract: A baseband demodulator receives inphase and quadrature signals I (116) and Q (117) representing a phase angle and amplitude. The demodulator (114) includes a discrete time continuous amplitude circuit (223, 253, 260) coupled to the quadrature generator to extract a sign information by processing the quadrature components (116 and 118). An accumulator 404 uses the sign information to manipulate predetermined phase angles stored at a memory component 402 to determine the phase angle carried by the I and Q components (116 and 118). As such, the need for up converters or complex analog-to-digital converters is eliminated in direct conversion receivers.

Abstract: An antenna (100) includes a radiating element (202) covered with a protective jacket having at least one pocket selectively located therein. The at least one pocket (102) is filled with a material (105) having an absorptive index substantially higher than the index of the protective jacket (102). This material imposes substantial restriction to the free radiation of radio frequency energy. Conversely, the remainder of the jacket (102) with no pockets provides for the unrestricted radiation of the radio frequency energy therethrough. As a result the antenna (100) directionally radiates energy without the use of reflectors or additional radiating elements.

Abstract: A transmitter circuit including an oscillator circuit (30) having at least one input for receiving at least one modulation signal and an output (32) for providing a modulated signal. A modulation circuit (13) is operably coupled to the at least one input of the oscillator circuit (30) for providing the at least one modulation signal and a feedback path (34) between the oscillator circuit (30) and the modulation circuit (13) provides a representation of the modulated signal output from the oscillator circuit (30) to the modulation circuit (13). In response to the modulated signal, the modulation circuit (13) automatically adjusts an amplitude level of the modulation signal.

Abstract: To generate a fixed frequency offset in a direct conversion receiver (200) a phase ramp representing the frequency offset if generated. This phase ramp is combined with the demodulated phase component of a received signal. A phase wrap detection and compensation circuit (224) is capable of detecting and compensating for phase wrap that occur in the phase ramp by differentiating the input and detecting when a phase wrap is about to occur and causes a switch (316) to flip between two conditions. A first condition couples the phase ramp to the output. A second condition compensates when a wrap around has been detected. As such, a VCO (218) produces a local oscillator having a fixed frequency offset that is immune from locking problems that occur when a phase wrap is introduced.