Abstract: An electric instrument casing in which a mounting portion is provided for mounting a cell unit on a bottom of a rectangular tubular case which detachably receives a radio unit. Further, an opening is provided in a part of a front surface of the tubular case. A front-surface panel is detachably provided so as to close the opening. The front-surface panel is provided with a ten-key sheet switch, a speaker, a microphone and the like. A flexible flat harness has a forward end thereof which is adapted to be inserted into a connector of the radio unit. An engaging piece on a top of the front-surface panel is engaged with the inside of an engaging portion that is an edge of an upper portion of the opening in the tubular case. Set screws are threaded into screw bores in mounting pieces on a lower portion of the front-surface panel through a cell-unit mounting portion of the tubular case, whereby the front-surface panel is fixedly mounted on the tubular case.

Abstract: A combination radio (10) is provided for enabling the user to listen to two independent radio stations at one time. Alternatively, the combination radio (10) can be tuned into the same radio frequency to allow the user to combine the sound output from each individual radio. Moreover, additional radios can be added to the combination radio to increase the sound output of the system.

Abstract: A sports helmet with portable audio sound producing capabilities is disclosed for use on a wearer's head during physical exercise or sports activities at which head injuries are to be protected against. There is a protective shell head covering composed of impact absorbing material which has downwardly facing rim portions terminating above the wearer's ear canals. Straps are provided for removably fastening the protective shell on a wearer's head. A sound speaker is attached at the downwardly facing rim portions above the wearer's ear canal. The speaker is spaced away from the ears so that the ear canals are not shielded. The speaker is aimed so that sound emitted therefrom is primarily directed downwardly past the wearer's ear canal. Other sounds, warnings, or communications from the surroundings can also be heard. A portable sound signal producing device communicates signals to the speaker for causing desirable sounds to be emitted from the speakers during physical exercise or sports activity.

Abstract: A holster (10) for a selective call receiver having a liquid crystal display comprises a plastic housing (12) for removably retaining the selective call receiver and a substantially clear lens (14) integrally formed in the plastic housing providing protection to the display and allowing a user of the portable communication product to view the liquid crystal display while the selective call receiver is retained within the holster.

Abstract: Requesting (transmitting) subscriber units may immediately begin transmitting an information signal over an assigned communication channel. Receiving subscriber units immediately unmute their speakers and monitor the assigned communication channel and attempt to detect a code, which indicates that they are monitoring the correct communication channel. At the central station (repeater), the information signal may be immediately repeated, unless an interference signal is present. In this way, the information signal may be rapidly disseminated (repeated) to improve subscriber access time, while providing assurance that the receiving subscribers will not receive a noise signal or the interference signal.

Abstract: In a portable telephone apparatus, the length of a housing thereof and a display area are altered between the operation and storage or non-operation states thereof, thereby improving operability thereof. In the operating state, the first display and the second display are activated to present information. In the non-operation state, only the first display is activated. In the storage state, to minimize the size of the housing, only the indispensable information items such as the remaining battery power and in-service-area designation are presented, thereby facilitating the apparatus to be accommodated in a small space. In the operation state, the housing is elongated such that the distance between the transmitter and the receiver is similar to that between the mouth and the ear of the user to improve the speech quality in the telephone call. Moreover, the display area is increased to possibly present a dial number inputted.

Abstract: A cover apparatus that provides a cover member having a recessed cavity having four sidewalls and a bottom wall. An audio system is hingedly mounted on a sidewall of the recessed cavity and is movable between a closed position, wherein the audio system lies flat on the bottom wall within the recessed cavity and an open position, wherein the audio system extends outwardly from the recessed cavity. A cover panel is also hingedly mounted on an opposite sidewall of the recessed cavity and is movable between a closed position, wherein the cover panel closes the recessed cavity and lies flat on the audio system and an open position, wherein the cover panel extends outwardly from the recessed cavity. The audio system and cover panel are maintained in an open and upright position by a support stand.

Abstract: A converter console (10) includes a base (36) having a hinge axis (127) at a rearward end and a vertical extension (311) having a base mounting joint (29) at the tip of the extension at a front end. A radio receiving pocket (25) has a handle mounting joint (411) at a first end and a hook (27) at a second end, corresponding to the ends of the base for pivotally mounting the hook around the hinge axis. A collapsible linkage (15) couples the pocket (25) to the base (36) between the base mounting joint (29) and the handle mounting joint (411) for pivotally raising and lowering the pocket and for clamping the pocket down.

Abstract: The present invention relates to a bicycle helmet and communication device for use by children. The invention includes a bicycle helmet having a notch extending from a boundary edge upwardly toward a crown portion. A sleeve is positioned within, and affixed to, the notch. A communication module having an adjustable slide, an earpiece, an antenna, and a boom having a microphone is positioned proximal to the notch for positioning, and adjustably attaching, the slide to the sleeve. The adjustable engagement between the slide and sleeve permits the positioning of the earpiece over the ear and the microphone proximal to the mouth of a child wearing the bicycle helmet and communication device. A power module having a transmitter and a receiver is remotely attached to the communication module by a cable. The power module is adapted for engagement to a user's belt. The microphone is connected to the transmitter which is voice activated by an individual.

Abstract: A wearable audio reception device includes an elongated flexible enclosure removably attachable to an article of clothing and the radio in turn being removably attachable to the flexible enclosure.

Abstract: A flexibly adjustable mounting clip assembly and method for providing the assembly for a pager includes a swivel assembly (104) for raising and rotating the mounting clip (102) approximately 180.degree. to provide a reversibly positioned clip. The clip allows for positioning in an introverted position, i.e., facing the bent section toward the pager and for positioning in an extroverted position, i.e., facing away from the pager. In addition, a transparent portion may be positioned below the clip assembly for allowing observation of the information display of the pager.

Abstract: An electronic device (100) includes a housing (222), a circuit supporting substrate (604, 605) within the housing (222) and mechanically coupled thereto, and electronic circuitry (606, 607, 608, 609, 610) mechanically coupled to the circuit supporting substrate (604, 605). A battery retainer (601) is located within the housing (222), and is mechanically coupled to the housing (222) for positioning and securing a battery (603) and preventing the transmission of mechanical shock between the battery (603) and nearby mechanical elements (240, 242, 604, 605, 606, 607, 608, 609, 610). The battery retainer includes at least one integrally molded user actuated switch (602) for controlling an operating function of the electronic device (100).

Abstract: A support assembly, and associated method, for permitting a reduced-sized, card member to be received by a standard-sized, card reader assembly of a radio telephone. The support assembly is comprised of a frame formed of a standard-sized, card member having a through-hole extending therethrough. The through-hole is of dimensions corresponding to the card member of the reduced dimensions. A thin, support sheet covers a portion of an opening formed by the through-hole on a top surface of the frame to form a front joist thereby, and the thin, support sheet is folded about an edge of the frame similarly to form a rear joist over an opening formed upon a bottom face surface of the frame by the through-hole. The front joist and the rear joist together form a pocket for supporting the card member of the reduced dimensions within the through-hole.

Abstract: A portable electronic device comprises a housing (100) including an attachment dip (110), electronic circuitry (215) enclosed within the housing, and an energy storage device (120) housed within the attachment clip.

Abstract: A radio communication device (600) comprises a microstrip antenna (300) having a planar antenna element (302) and a ground plane (314) coupled to the planar antenna element (302). The microstrip antenna further comprises a dielectric material (304) positioned between the planar antenna element (302) and the ground plane (314), and a primary receiver element (325, 326, 328) mechanically coupled to the ground plane (314). The microstrip antenna (300) further comprises a feeder (308, 310) electrically coupled between the planar antenna element (302) and the primary receiver element (325, 326, 328) for feeding an intercepted radio signal therebetween for down conversion by the primary receiver element (325, 326, 328). The radio communication device (600) also comprises a secondary receiver element (828) coupled to the primary receiver element (325, 326, 328) for demodulating the intercepted radio signal after down conversion by the primary receiver element (325, 326, 328).

Abstract: Systems, methods and apparatus are provided for conducting local wireless audio signal transmissions from a local audio signal source to a person within a local signal transmission area. In certain embodiments, the transmissions are conducted over the 900 MHz local transmission band to a portable receiver unit supported on the headband of a stereo headphone unit. The receiver unit serves to down convert the 900 MHz signal to a local frequency band which is received by an FM receiver of the receiver unit which serves to reproduce the audio signals therefrom which are, in turn, converted to acoustic signals by electroacoustic transducers of the headphone. A transmitter unit includes a ceramic resonator stabilized FM transmitter, as well a filter for suppressing high frequency noise in an audio modulation signal, a stereo audio multiplexing unit utilizing a 3f.sub.H subcarrier and an overmodulation detection unit.

Abstract: Headgear, such as a cap having a crown, a brim and an internal sweatband or flap, is combined with an electronic receiving device, such as a radio, which is connected to the inner surface of the flap by a first double sided adhesive strip. The first strip, in turn, is adhesively secured to a backing element mechanically attached to the flap. A battery holder is similarly mounted to the flap on the other side of the brim by a second double sided adhesive strip and a second backing element. Earphones are connected to the radio by suitable wires with the wires for the earphones on the opposite side of the radio, along with wires connecting the battery holder to the radio, being secured to the inner surface of the flap adjacent the brim by a third double sided adhesive strip. Preferably, when an electronic receiving means is an AM/FM radio, an antenna is provided.

Abstract: A backpack assembly for holding audio components comprising a backpack having lower, upper, front, rear and two side faces. One of the side faces includes a plurality of pockets formed interiorly of the bag. One of the plurality of the pockets is sized to hold a speaker therein and a second of the plurality of pockets is sized to hold a radio therein wherein the radio and the speaker are operatively connected by a speaker wire extending from the speaker to the radio.

Abstract: The present invention provides a portable communication system with functional components whose functions are not readily apparent to an observer. One embodiment of the system includes a carrying case in which the antenna portion of the communication system is concealed between the shell of the case and an inner liner; a reflector to protect the radio portion of the system from electromagnetic radiation and direct electromagnetic radiation to or from the antenna that is covered so that it simulates the appearance of the file folder portion of a briefcase; and a radio that is covered with a shell upon which are mounted the keyboard and CRT of an actual personal computer or a simulation thereof, so that when the case is open, it appears to contain a laptop computer.

Abstract: Swimming goggles include an AM/FM radio assembly as well as a lap counter. The radio assembly includes earphones that also include foam for plugging the swimmer's ear to prevent water from entering that ear. The goggles also include plastic temple pieces that serve a dual function of securely supporting the goggles on the swimmer and supporting the radio and lap counter.

Abstract: A generally hands-free, voice communication system in combination with a head-protective helmet. The helmet protects the wearer's head and the communications system permits voice communications between journeyman personnel, e.g. firefighters, police, military, industrial, hazardous material handling personnel, in relatively close proximity with each other and between journeymen and a group leader; and the group leader's communication system to also permit relatively long-range communication between the group leader and a relatively distant communications center such as a fire engine or distant fire company, base station or repeater.

Abstract: A data communication receiver (100) for receiving a radio frequency (RF) signal includes receiving circuitry (410) for receiving the RF signal and recovering a selective call message therefrom and for generating an activation signal in response to recovery of the selective call message. The data communication receiver (100) further includes a transducer/switch component (300) coupled to the receiving circuitry (410) comprising a transducer (230) having leads (305, 310) formed thereon for providing the activation signal to drive the transducer (230), wherein a first of the leads (310) has contiguously formed therefrom a switch element (105) for selectively contacting the receiving circuitry (410).

Abstract: A beeper holder includes a casing having two lugs and a hook on the back at different elevations; a back plate having two mounting flanges bilaterally and perpendicularly disposed near a top side thereof and turned about a pivot pin connected between the lugs on the casing, a projecting strip spaced between the mounting flanges, and a retaining hole near a bottom side thereof for receiving the hook on the casing; a clamping plate having two triangular mounting flanges bilaterally and perpendicularly disposed near a top side thereof and turned about the pivot pin between the mounting flanges of the back plate; and a substantially V-shaped spring plate having one end fastened to the projecting strip of the back plate and an opposite end stopped against the clamping plate causing the clamping plate clamped on the back plate.

Abstract: A miniature portable radio communication apparatus. A single casing includes a transmitter and a display. A movable member slidably received in the casing may be pulled out, as needed, and loaded with a receiver.

Abstract: A battery operated electronic device includes electronic circuits (10, 12, 14, 16, 18, 20), and a battery holder (218, 222, 226) electrically coupled to the electronic circuits (10, 12, 14, 16, 18, 20) for holding a first replaceable battery (216) and for electrically coupling the first replaceable battery (216) and the electronic circuits (10, 12, 14, 16, 18, 20), and for delivering power thereto. The battery holder (218, 222, 226) allows replacement of the first replaceable battery (216) in the battery holder (218, 222, 226) with a second replaceable battery (238). The second replaceable battery (238) can be utilized to displace the first replaceable battery (216) from the battery holder (218, 222, 226) in the battery replacement operation. Further, a method is provided for the battery replacement operation.

Abstract: A floating sound system for use in a swimming pool or the like has a radio, tape player, power supply, and controls. The power supply unit nests within a toroidal float, being attached thereto by straps. The radio and associated components are located in a domed housing resting upon the float. The sound system is built to disassemble into these three subassemblies. The resultant sound system floats stably in water, and, due to speaker cones arranged parallel to the water surface, projects sound very effectively.

Abstract: A radio alarm clock with removable cassette player/recorder is powered by a rechargeable battery which is recharged when the removable cassette player/recorder is installed on the radio alarm clock. The radio and the cassette player/recorder may be played independent of the clock. Five wakeup modes are disclosed: tone only, radio only, cassette player/recorder only, tone then cassette player/recorder and radio then cassette player/recorder. The cassette player/recorder may be removed from the radio alarm clock so that it may be used as an electronic memo pad; the messages dictated to it during the course of a day may be replayed the following morning when the alarm clock activates the cassette player/recorder. When installed on the radio alarm clock the cassette player/recorder plays back through the larger radio alarm clock amplifier and speaker.

Abstract: A latching device (110) for use in a latch system for a housing comprising first and second housing sections (102, 104), comprises a battery compartment (107) and a latch member (112) adjacent to the battery compartment. The latch member (112) is for coupling to the second housing section (104) to latch the first and second housing sections (102, 104) when the latch member (112) is in a first position and to unlatch the first and second housing sections (102, 104) when the latch member (112) is in a second position. The latching device (110) further comprises a movable extender member (114) coupled between the first housing section (102) and the latch member (112) for extending the latch member (112) into the second housing section (104) and for allowing the latch member (112) to move between the first and second positions, the latch member (112) being prevented from moving into the second position when a battery (106) is in the battery compartment (107).

Abstract: A compact, radio frequency receiver apparatus having left and right channel conductors windably disposed within a housing of the apparatus. The left and right channel electrical conductors each further have earphone transducers electrically coupled thereto. The earphone transducers may be manually, removably stored in a plurality of recesses formed in an external surface of the housing. The conductors are windably disposed on a spool within the housing of the apparatus, with the spool being rotatable freely therewithin. A spring operatively associated with the spool exerts a constant biasing force in a rewind direction to tend to constantly urge the spool in the rewind direction. A latching member, manually movable by a user via a pushbutton release member, holds the spool stationary after the conductors have been unwound from the spool an approximate, desired length.

Abstract: A support assembly for supporting two poppel-type actuation switches at a housing, such as a radiotelephone handset housing. The actuation switches are positioned beneath a support body of the support assembly and maintained in a desired orientation relative to such support body by pawl arms which extend beneath the support body. Post members extend beneath the support body to abut against membranes of the respective actuation switches. The support body is affixed to the housing by way of retaining arms positioned to extend beneath the support body midway along the length thereof while permitting limited pivotal movement about rocker arms positioned at sides of the support body responsive to twisting moments applied to the support body. The twisting moments applied to the support body are transmitted to the poppel-type switches by way of the post members form the actuation forces to actuate the poppel-type switches supported thereat.

Abstract: A portable radio provided with a slidable antenna retractably supported by a housing, an antenna operating member movably mounted in the housing for projecting an antenna top portion from the housing by sliding the antenna in a first direction toward the outside of the housing or for releasing the antenna to enable the antenna to slide in a retracting direction opposite to the first direction, and an operating portion for operating the antenna operating member from outside the housing.

Abstract: A microcomputer within a duplex RF transceiver operates in an interrupt-driven manner to simultaneously encode and decode CTCSS signalling (with one microcomputer interrupt service routine being devoted to CTCSS encode, and another microcomputer interrupt service routine being devoted to CTCSS decode). Such encoding and decoding of CTCSS signalling is accomplished using minimal external control hardware (e.g., two flip flops and an inexpensive conventional multipurpose counter/timer chip). The resulting arrangement is inexpensive, reliable and requires only a few components in addition to the appropriately programmed microcomputer in order to provide simultaneous encoding and decoding of CTCSS signals in a full duplex RF transceiver context.

Abstract: A communication unit (10) transmits a first signal (12) that has a plurality of holes (44) therein during the occurrence of which another communication unit may interrupt. A repeater (14) receives the first signal and transmits a second signal (16) comprising the information in the first signal, and a plurality of digital coded squelch words synchronized with the holes to indicate the location of at least one of the holes in the first signal (i.e., the time at which at least one of the holes will occur). In one embodiment, each hole occurs after each pair of coded squelch words, and accordingly the pairs of coded squelch words are marked to indicate the times of occurrence of holes in the first signal.

Abstract: An alarm system for notifying necessary medical and hospital personnel that a patient or the patient's life support equipment require immediate response without providing the alarm signal to the monitored patient or surrounding patients, to prevent patient trauma which may otherwise result from the sound of the alarm. The system includes an alarm signal generator that provides a coded pulse indication of the patient and equipment type. The coded signal is sent to a master control unit preferably located at a nurses' station. The master control unit then transmits the coded alarm signal simultaneously to the appropriate group of pagers having vibrational annunciators and a visual display that describes the patient location and equipment type. The patients monitor and equipment at bedside and the pagers have no audio alarm signals. The alarm signal can only be terminated manually by an interrupt switch at the bedside.

Abstract: An apparatus including a radio receiver mounted interiorly of a welding helmet adjacent an upper edge thereof, with a plurality of speakers selectively securable adjacent an interior surface of the helmet. A modification of the invention includes a flexible semi-circular speaker cup mounting each audio head phone therewithin to enhance audio transmission, as well as hook members to secure excessive speaker wire relative to each head phone. The head phone wires are mounted utilizing cooperative hook and loop fastener strips to secure the head phone wires within the helmet, as required.

Abstract: A radio frequency receiving device which is totally self contained and is fully supported at a diverging opening of a user's ear extending from the ear canal. The device includes an elongate casement having a lower portion and an upper portion at a total length of less than two inches. The casement is constructed of a top portion and a bottom portion, the top portion being deflected from the bottom portion by an acute angle whose value is between the range of 10 to 30 degrees. The bottom portion includes a speaker device mounted at a proximal side thereof and being configured to frictionally fit at the diverging ear opening in close proximity to the skull, with the upper half resting against the ear or being in frictional contact with an upper lip of the ear extending from the top cartilage. The device includes a printed circuit board contained within the casement, a battery compartment, on/off power and volume switches and a tuning circuit for providing selection of desired frequency.

Abstract: An anti-fall structure for preventing the battery cover of a radio communication apparatus or similar apparatus from accidentally coming off the casing of the apparatus. A thumb piece is fitted on the casing in such a manner as to be slidable into and out of locking engagement with a notch formed in the battery cover in a direction substantially perpendicular to a direction in which the battery cover is slidable. The thumb piece is held in a locking position due to the engagement of a recess formed in the inner periphery of the casing and a flexible locking member affixed to the thumb piece. The thumb piece does not unlock the battery cover unless operated intentionally by a predetermined force and, therefore, positively retains it. The locking member is long enough to surely mate with the inner periphery of the casing. This, coupled with the fact that the inner periphery of the casing catches lugs provided on the thumb piece in the locked position, the thumb piece itself is prevented from coming off.

Abstract: A shock isolator (30) is provided within the housing (38) of a selective call receiver to substantially increase the natural frequency of vibration of the housing (38) and the printed circuit boards (54, 56) within the housing. The shock isolator (30) is a body of elastomeric material, preferably butyl rubber, which has component receiving apertures (32) molded therein for receiving the components (46, 48, 50) on the printed circuit board while at the same time contacting the printed circuit board. The butyl rubber has a damping of at least 25% (preferably 50%) and a Durometer of between 50 and 70 type A (preferably 60).

Abstract: A selective call receiver (100) including a receiver (102) for receiving messages and a housing (104) for housing the receiver (102). A clasp (200) for securing first and second wrist straps (112, 114) including a base member (202) and a pair of sides (204, 206) contiguous with the base member (202). A first compression member (208) located between the pair of sides (204, 206), the base member (202) and the first compression member (208) for engaging the first wrist strap (112) slidably therebetween. The first wrist strap (112) is also coupled to the housing (104). A clasp cover (214) having a second compression member (210) coupled thereto and to a first (204) of the pair of sides. The second compression member (210) engages the second wrist strap (114) with the first compression member (208) when the clasp cover (212) is transversely rotated between the pair of sides (204, 206) while the second wrist strap (114) also coupled to the housing (104).

Abstract: A digital FM base station radio having a dedicated digital signal processing (DSP) board operates on audio signals from RF links and land lines. The DSP board detects, filters and generates tones and communicates information regarding these tones to a controller microprocessor on the central control board for the radio.

Abstract: An audio squelch control for transceiver stations in which all transceivers are initially in a Call mode with the squelch control turned on. While in the Call mode, the squelch control is turned off, enabling the speaker, by receiving the station's coded address, plus a flag bit that is set, from a transmitting station. In addition to having the squelch circuit turned off, the receiving station is changed from the Call mode to an Auto mode. When in the Auto mode, the squelch control is turned off by receiving the station's coded address with the flag bit turned off. The squelch control of a station in one mode does not respond to a station in the opposite mode even if it receives its own coded address.

Abstract: A baby monitor transmitter is provided for use in combination with a receiver unit. The transmitter includes an arcuately shaped antenna which conforms to an arcuate shape of an upper edge of the transmitter housing. The antenna may be pivoted outwardly away from the housing to a plurality of predetermined positions. In addition, the transmitter includes a clip member which may be used to hang the transmitter on various supporting surfaces. The clip member includes a vertical leg extending parallel to a rear surface of the transmitter and the vertical leg may be moved toward and away from the housing in order to accommodate supporting structures of different sizes.

Abstract: A wristworn receiving device suitable for being worn about a wrist comprises a receiver (404) for receiving radio frequency signals on a particular operating frequency, a housing (142) for enclosing the receiver (404), a first wristband section (102) including a first wristband loop antenna portion (118) and a movable clasp member (122), and a second wristband section (104) including a second wristband loop antenna portion (134) terminated in a fixed clasp member (140). The first (118) and second (134) wristband loop antenna portions are partially resonated at the operating frequency. The second wristband loop antenna portion (134) is coupled to the first wristband loop antenna portion (118) and is positioned by the movable clasp member (122) at first (204) and second (202 or 206) positions along the first wristband loop antenna portion (118) so as to form a resonant loop antenna which remains substantially tuned to the operating frequency at the first (204) and second (202 or 206 ) positions.

Abstract: An integral electric switch, for controlling an electronic apparatus, comprises a main housing and a flap portion, rotatably attached thereto. The main housing contains the electronic apparatus. The flap portion has a hinge cam for rotatably attaching the flap portion to the main housing, so that the flap portion is movable from a defined open position to a closed position with respect to the main body. The main housing comprises a plurality of spring fingers making sliding contact with the hinge cam as the flap portion is rotated from the open position to the closed position thus providing a switching function and electrical connection from the housing to devices contained within the flap.

Abstract: A radio or speaker-microphone unit includes a housing having first and second portions. A speaker is disposed in one of the portions and a microphone in the other of the portions. The portions are movable between first and second relative positions, with one of the positions providing a handset configuration and the other providing a speaker-microphone configuration. A switch senses the relative position of the housing portions and adjusts the gain of an audio amplifier.

Abstract: A substantially card shaped data communication receiver (100) for receiving radio frequency (RF) signals comprises receiver circuitry for recovering information included in the RF signals, an insulative frame (210), a first conductive panel (215) disposed over a first side of the frame (210), and a second conductive panel (220) disposed over a second side of the frame (210) such that the receiver circuitry is enclosed within the space defined by the frame (210) and the first and second panels (215, 220). The first and second panels (215, 220) have coupling members formed thereon for electrically coupling the first panel (215) to the second panel (220).

Abstract: A portable electronic equipment having a clip and an exchange panel which is adapted to be selectively fitted in a fitting groove formed on the rear surface of a housing incorporating a battery, a radio communication circuit, memory and the like, the clip or the exchange panel being releasably locked in the fitting groove, whereby the portable electronic equipment can be carried by being hooked on a belt or a pocket or clothes worn by a person with the use of the clip while it is held in a handbag or a pocket with the clip being removed and replaced with the exchange panel

Abstract: A communication device (10) includes a loop antenna (18) that is located within a molded portion of the housing (14) of the communication device, and an electrical contact (20) for the antenna that also provides a mechanical support for at least a portion of the communication device (10).

Abstract: A clock-driven pulse source is used to apply repetitive short pulses to the squelch control point of the squelch circuitry of a radio receiver to deactivate momentarily the squelch circuitry at regular intervals (FIGS. 2B, and 2D). The repetitive short pulses being applied to the active squelch circuitry of a radio receiver to deactivate it momentarily at regular intervals may, according to the present invention, be applied directly or through reactive coupling to the antenna associated with the radio receiver (FIGS. 2M and 2N). This provides periodic noise bursts of "de-squelch" pulses on an otherwise silent radio in order to inform the radio operator that the radio is live and that the volume is adequate. A light may also be connected to the system to provide a second, visual, indicator of the operational status of the radio.

Abstract: A microphone mount and plug mount for attaching to the side of a motorcyclist's helmet, said microphone mount adapted to secure a microphone boom positioning a microphone proximate the motorcyclist's mouth, the motorcycle mount characterized by a clamp portion adapted to forcefully engage the bottom edge of the helmet with minimum structure below the edge of the helmet, and a boom seat to receive the boom base and passage of electrical wires from the microphone mount. The plug mount defines a clamp portion similarly adapted to surround the lower edge of the helmet, and a plug seat defining a cavity adapted to receive a electrical plug and an opening to said plug seat cavity to receive electrical wires from said microphone mount and from a headset mounted interiorly to said helmet, the electrical plug receiving a mating electrical plug attached to wires connecting with audio accessories located on said motorcycle.