US20110095600A1 - Enhanced cigarette lighter adapter - Google Patents

Enhanced cigarette lighter adapter Download PDF

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Publication number
US20110095600A1
US20110095600A1 US12/926,972 US92697210A US2011095600A1 US 20110095600 A1 US20110095600 A1 US 20110095600A1 US 92697210 A US92697210 A US 92697210A US 2011095600 A1 US2011095600 A1 US 2011095600A1
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US
United States
Prior art keywords
cigarette lighter
lighter adapter
power
cla
electronic circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/926,972
Inventor
Ashley Sayed
Lucien Groenhuizen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TomTom International BV
Original Assignee
TomTom International BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US11/907,254 priority Critical patent/US7902691B2/en
Application filed by TomTom International BV filed Critical TomTom International BV
Priority to US12/926,972 priority patent/US20110095600A1/en
Publication of US20110095600A1 publication Critical patent/US20110095600A1/en
Assigned to TOMTOM INTERNATIONAL B.V. reassignment TOMTOM INTERNATIONAL B.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SAYED, ASHLEY, GROENHUIJZEN, LUCIEN
Application status is Abandoned legal-status Critical

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0052Charge circuits only
    • H02J7/0054Battery to battery charging
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063Circuits adapted for supplying loads only
    • H02J7/0065Circuits adapted for supplying loads only using converters specially adapted for use with a battery

Abstract

A cigarette lighter adapter (CLA) is disclosed comprising a body and a barrel portion extending therefrom, said barrel portion including a first and second contacts respectively connectable within a vehicle cigarette lighter to be powered therefrom, said CLA being additionally provided with at least one primary electronic circuit within the body thereof, connected directly or indirectly to said contacts, and an output to which a power signal is capable of being delivered. The CLA is characterized in that it includes an antenna component in electrical communication with said primary electronic circuit, the latter delivering at least one of the antenna signal, a electronically processed version thereof, or data derived from the electronic processing thereof, to said output in conjunction with said power signal, the source of which is derived from said contacts or from an alternative power source provided within the body of said CLA, such as an on-board rechargeable battery, said power signal source further providing power to said primary electronic circuit to enable operation thereof. Further features include the provision of one or more secondary electronic circuits within the CLA to provide power management, regulation, control, switching, and/or battery re-charging functions, and the segregation of the primary and secondary electric circuits so as to ensure effective heat dissipation. Most preferably, the CLA is provided with vents adjacent which at least one of the secondary electronic circuits is provided. In an alternative aspect, the invention provides a CLA with power circuitry, a wireless modem, an antenna, and a subscriber identity module (SIM), together with a further wireless transceiver by means of which signals received by the antenna and processed by the modem can be wirelessly communicated to a remote device.

Description

    CROSS-REFERENCE TO RELATED APPLICATIONS
  • This application is a continuation of and claims priority under 35 U.S.C. §§120/121 to U.S. patent application Ser. No. 11/907,254, filed on Oct. 10, 2007. The disclosure of the above application is incorporated herein by reference.
  • This invention relates to an enhanced cigarette lighter adapter (CLA) in which electronics are provided which may be powered from a vehicle having a cigarette lighter. More specifically, the present invention relates to an enhanced CLA having electronics therein and which is capable of communicating with in-car apparatus, either wirelessly or through a wired connection thereto.
  • BACKGROUND OF THE INVENTION
  • The use of CLAs to provide power to a wide variety of apparatus is known. Typically, such CLAs are provided with a body portion and a barrel portion on which are provided the electrical contacts. A first contact pin protrudes from the end of the barrel portion, and one or more second contacts are provided on the cylindrical periphery of the barrel portion such that when the CLA is inserted into the cigarette lighter of a vehicle, an electrical circuit, including whatever electronics are provided inside the CLA, is completed, and power can be drawn from the vehicle battery. Usually, vehicle batteries provide a 12V DC power source, whereas the majority of electronic apparatus which might be used in a car will require slightly different, albeit still low, voltage. Examples of apparatus include laptop computers, in-car DVD players, mobile telephones, and in-car or portable navigation devices, with which this invention is primarily concerned. Power is provided to the apparatus by means of a cable which is electrically connected internally to the electronics inside the CLA, and which emerges from the rear or side of the body of the CLA, ultimately terminating in a suitable connector.
  • Personal navigation devices or PNDs are being widely adopted by drivers and owners of vehicles throughout the world. The navigation assistance provided by such devices is facilitated by on-board processing equipment which accurately (within about 10 m) determines the position of the PND on the surface of the earth, and associates that position with digitized map data provided in memory accessible to the PND, usually either in a small memory card, or on-board RAM or ROM. As is known, PNDs can receive user input of a desired destination in a variety of ways, whereupon the PND calculates a best route according to various algorithms and user requirements and then displays a relevant portion of a map along with a route to be navigated. Typically the PND will include an internal battery, but as most PNDs include a display screen for real-time display of map data as the vehicle moves, they are relatively power-hungry devices and can only be used on battery power alone for short journeys.
  • CLA adapters which provide power for PNDs, and for re-charging the batteries within them, are known. Currently, CLAs are aftermarket accessories which provide only power to the PND thereby having limited market value, especially when competing with home chargers and other charging devices. Accordingly, a need exists in the art for a more cost effective, functional and consumer-appealing CLA.
  • Published US patent application US2005/0054400 discloses a CLA in which is in the traditional form having a barrel portion with contacts and a body. Within the body there is further provided a first circuit for power management, regulation, and delivery to a first output, and one or more further circuits, powered from the contacts, capable communicating in a wireless local area network (WLAN). An antenna is further provided in the body, the signal from said antenna being delivered to the WLAN circuitry, a separate output for which is also provided. Both outputs are in the form of two or more cables emerging from the rear of the body of the CLA, for separately providing a recharging power source, and telecommunications data derived from the signal received by the antenna within the device.
  • SUMMARY OF THE INVENTION
  • According to the present invention there is provided a CLA comprising a body and a barrel portion extending therefrom, said barrel portion including a first contact in the form of a pin protruding from one end and one or more second contacts being provided elsewhere thereon, said CLA being additionally provided with at least one electronic circuit within the body thereof, connected directly or indirectly to said contacts, and an output to which a power signal is capable of being delivered,
  • And characterized in that
    The CLA includes an antenna component in electrical communication with said electronic circuit, the latter delivering at least one of:
      • the antenna signal,
      • a electronically processed version thereof,
      • data derived from the electronic processing thereof
        to said output in conjunction with said power signal, the source of which is derived from said contacts when disposed within a live vehicle cigarette lighter or from an alternative power source provided within the body of said CLA, said power signal source further providing power to said electronic circuit to enable operation thereof.
  • In an alternative aspect, the invention provides a CLA comprising a body and a barrel portion extending therefrom, said barrel portion including a first and second contacts respectively connectable within a vehicle cigarette lighter to be powered therefrom, said CLA being additionally provided with at least one primary electronic circuit within the body thereof, connected directly or indirectly to said contacts, said CLA including an antenna component in electrical communication with said primary electronic circuit which primarily derives a source of power from said contacts,
  • Characterized in that
    said CLA further includes a subscriber identity module (SIM) capable of receiving a SIM card and being in electrical communication with said primary electronic circuit, and a secondary wireless transceiver circuit in electrical communication with said primary electronic circuit and capable of wirelessly communicating
      • the antenna signal,
      • a electronically processed version thereof,
      • data derived from the electronic processing thereof
        to a remote device.
  • Preferably, the alternative power source is in the form of a (preferably) rechargeable, battery, such as a Lithium Ion battery, a nickel-metal-halide battery, or the like.
  • In a preferred arrangement, the electronic circuit also includes a recharging electronics which are capable of recharging the battery when a source of power is being provided through the contacts from a live vehicle cigarette lighter.
  • In an alternative arrangement, the CLA includes a secondary electronic circuit, which is also directly or indirectly connected to said contacts, as well as to the battery, such being adapted to effect a recharging function on said battery when a source of power is being derived from said contacts.
  • In a most preferred arrangement, CLA further includes a voltage switching regulator, which may be included in or be separate from the secondary electronic circuit.
  • In a most preferred arrangement, the electronic circuit is a wireless telecommunications processing circuit, for example capable of processing at least one of the following telecommunications standards or protocols: GSM, GPRS, EDGE, HSDPA, CDMA, WCDMA, WiFi, WiMax, Bluetooth. Most preferably, the electronic circuit is a wireless modem.
  • Preferably, the CLA output is a cable in electrical communication with said electronic circuit.
  • Most preferably, said CLA is provided with one or more LEDs indicative of one of the charging of the battery, the existence of a source of power for the CLA from a live vehicle cigarette lighter, and the processing of signals received by the antenna.
  • Preferably, the CLA is provided with at least two LEDs, preferably of different colours, a first LED providing an indication of the existence of a source of power for the CLA, and a second LED for providing an indication of the processing of signals received by the antenna.
  • In a preferred arrangement, the electronic circuit is capable of amalgamating the antenna signal, an electronically processed version thereof, or a data signal derived therefrom, with said power signal, and delivering both in conjunction to said output.
  • In a most preferred arrangement, the electronic circuit is a quad- or tri-band GPRS modem which is capable of extracting traffic congestion data from the signal received by the antenna, and the output is a serial output, such as a USB socket or cable, or a UART socket or cable, any of which can be used to deliver both power and data to a portable navigation device.
  • By providing the antenna and associated processing electronics in the CLA, the GPRS modem and related elements may be removed from the PND thereby saving engineering and manufacturing costs along with providing the industrial designer with fewer components to squeeze into the PND thereby opening the PND to other designs.
  • In a further preferred embodiment, a subscriber identity module (SIM) card connector is provided, in electrical communication with said electronic circuit whereby the CLA can automatically subscribe to, and thus process received wireless signals from, a particular mobile telecommunications service provider when a suitably enabled SIM card is present in said connector.
  • In a preferred arrangement, the modem is capable of establishing a wireless connection using at least one of a subscriber identifier (IMSI), a modem identifier (IMEI), and an identified of a PND (PND UID).
  • In a further preferred arrangement, the CLA further includes power control electronics.
  • Most preferably, the antenna is a substantially flat component affixed to the inside surface of a part of the body of the CLA.
  • In a particularly preferred embodiment, the CLA is provided with vents in its body through which hot air, generated as a result of contact with the hot-working electronic circuit(s) and other electronic circuits, can escape.
  • Most preferably, the CLA includes a first electronic circuit which receives a signal from the antenna, and one or more second electronic circuits for providing at least one of power management, regulation, switching and recharging functions, wherein at least one of the second circuits is separate from the first electronic circuit but in electrical communication therewith, and wherein said one or more second electronic circuits is disposed proximate the vents provided in the body of the CLA.
  • Most preferably the vents are provided toward the front of the body of the CLA, with the battery, first electronic circuit, and optional SIM connector being provided towards the rear of the body, remote from the barrel portion. This arrangement is advantageous because the power management, regulation, switching and recharging functions which the CLA may have, are performed by the vented electronic circuitry, such functions (and circuitry) typically generating far more heat than the first electronic circuitry which processes the antenna signals. Accordingly, this segregation is an efficient and safe arrangement of components within the CLA.
  • In a most preferred arrangement, the one more secondary electronic circuits is provided on a pair of PCBs disposed adjacent one another inside a forward portion of the body of the CLA, each said PCB being additionally disposed proximate a vent on the outside of the CLA.
  • A specific description of the invention will now be described by way of example, with reference to the following drawings:
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 shows an exploded perspective view of a CLA of a type suitable for use with the present invention,
  • FIGS. 2A, 2B show different perspective views of the CLA of FIG. 1 to which components have been added,
  • FIG. 3A provides a schematic circuit diagram of a CLA of a first aspect of present invention,
  • FIG. 3B provides a schematic circuit diagram of a CLA of a second aspect of present invention,
  • FIG. 4 shows a perspective view of a CLA having an antenna therein,
  • FIG. 5 shows a perspective view of the CLA of FIG. 4 in partially assembled state,
  • FIG. 6 shows the CLA of Figures of 4 and 5 in a further assembled state, and
  • FIG. 7 shows a CLA in completed condition with LEDs visible at the rear.
  • DETAILED DESCRIPTION OF THE INVENTION
  • Referring firstly to FIG. 1, there is shown a CLA generally indicated at 2 consisting of respective upper and lower casing halves 4, 6, each having a body part 4A, 6A and barrel part 4B, 6B. Together the casing halves, when assembled define a body with a cavity in which the electronics of the CLA may be provided, and a barrel part in which a first contact 8 and second contacts 10 are, usually springingly, mounted, and connected in turn through a fuse 12 (shown in FIG. 2B) to the electronics of the device.
  • Assembly of the CLA is completed in stages, with the various components being inserted into one or both of the casing halves and electrically connected together, whereupon the casing halves are brought together in snap-fitting manner as indicated by arrows 11A, and finally a cover 14 is slid axially as indicated at 11B over the assembled casing halves to encapsulate the majority of the body of the CLA therein. As can be seen from the figure, each casing half is provided with vent formations 4C, 6C which cooperate or otherwise inter-engage when the casing halves are brought together to define vents through which hot air generated inside the CLA during operation can escape. It is also worth mentioning, and advantageous, that the vents are provided opposite one another so that air can flow through the device in the most direct manner possible.
  • As can be seen from FIG. 2A, a rechargeable battery 16 is provided with an associated connector 18, which is in electrical communication with one or more secondary electronic circuits 20, 22, which in this embodiment are mounted on separated but adjacent printed circuit boards (PCBs) 24, 26 respectively. Such secondary electronic circuits provide such functions as power management, control, switching, regulation, and re-charging. Additionally, the battery 16 and associated connector are also mounted on a suitable PCB 28, beneath which is mounted a substantially planar antenna 30, as shown in FIGS. 2B and 4.
  • Referring now to FIG. 3A, a schematic block diagram is provided of the components provided within CLA 2 of the present invention. The on-board battery 16 is shown, and the contacts are schematically represented at 40, the source of power derived therefrom being represented at 42 and feeding a switching regulator 44 which operatively reduces the traditional DC car battery voltage from 12V DC to 5VC DC. A quad band GPRS modem or other wireless telecommunications processing device is provided at 46, and both regulator 44 and modem 46 are connected to LEDs 48, 50 respectively, which are ideally of different colours and demonstrate the charging of the battery 16 and/or power supply through the contacts 42 on the one hand, and the processing activity of the modem 46 respectively. It is to be noted that the voltage regulator is in electrical communication with both modem 46 and battery 16 at 52 and 54 respectively, and is capable of providing a source of power to both. Furthermore, the output of the regulator 44 is also, in this embodiment, directly coupled at 56 to both a USB cable output 58 and optionally a conventional UART (universal asynchronous receiver/transmitter) cable output 60.
  • It should be mentioned that the presence of both a USB cable output and a UART cable output is unlikely to ever be implemented in practice as only one of these outputs is likely ever to be required, but the Figure demonstrates the possibilities for connection. Additionally, it should be mentioned that the in the embodiment shown, a power signal is fed directly from the regulator 44 to both—in an alternative embodiment, the modem 46 may additionally include basic power management and/or transfer functions such that the direct connections 56 are not required, a power signal being delivered to outputs 58, 60 in conjunction with the data signals complying with the particular communications standards. Such signals are provided by the modem 46, at 62 or 64 as the case may be, and in the case that a USB cable output is provided, an additional USB controller 66 may be provided to ensure USB signals comply with the USB communications standard.
  • A SIM module 68, capable of receiving a conventional SIM card, is provided in communication with the modem 46 for enabling subscription to a particular wireless telecommunications network provided by a service provider by whom the SIM card is issued, and of course, an antenna 30 provides a means for collecting wireless signals being transmitted through space, said antenna again communicating with said modem 46 to deliver a useful signal thereto. Additionally, a reset facility in the form of a switch 68 or the like which causes a soft and/or hard reset of the modem 46 may be provided. Such facility may also be extended to the regulator 44 if required.
  • Referring to FIG. 3B, an alternative aspect of the present invention is schematically illustrated, like reference numerals be employed to those of FIG. 3A to identify like components. The important distinction in this aspect of the invention is that the battery 16 is optional, the SIM module 68 provides an authorization means for the modem 46 to enable the receipt of signals from an ambient mobile telecommunications service, and the output of the modem, whether the basic antenna signal, an electronically processed version thereof, or data extracted therefrom is delivered to a wireless transceiver device 61A, which may be ideally be a Bluetooth® transceiver employed for wireless communication with a remote device 61B. In a most preferred arrangement, both modem 46 and transceiver 61A are provided with a source of power from the contacts 40, or if provided, from the optional battery 16. block diagram is provided of the components provided within CLA 2 of the present invention. The on-board battery 16 is shown, and the contacts are schematically represented at 40, the source of power derived therefrom being represented at 42 and feeding a switching regulator 44 which operatively reduces the traditional DC car battery voltage from 12V DC to 5VC DC. A quad band GPRS modem or other wireless telecommunications processing device is provided at 46, and both regulator 44 and modem 46 are connected to LEDs 48, 50 respectively, which are ideally of different colours and demonstrate the charging of the battery 16 and/or power supply through the contacts 42 on the one hand, and the processing activity of the modem 46 respectively. It is to be noted that the voltage regulator is in electrical communication with both modem 46 and battery 16 at 52 and 54 respectively, and is capable of providing a source of power to both. Furthermore, the output of the regulator 44 is also, in this embodiment, directly coupled at 56 to both a USB cable output 58 and optionally a conventional UART (universal asynchronous receiver/transmitter) cable output 60.
  • It should be mentioned that the presence of both a USB cable output and a UART cable output is unlikely to ever be implemented in practice as only one of these outputs is likely ever to be required, but the Figure demonstrates the possibilities for connection. Additionally, it should be mentioned that the in the embodiment shown, a power signal is fed directly from the regulator 44 to both—in an alternative embodiment, the modem 46 may additionally include basic power management and/or transfer functions such that the direct connections 56 are not required, a power signal being delivered to outputs 58, 60 in conjunction with the data signals complying with the particular communications standards. Such signals are provided by the modem 46, at 62 or 64 as the case may be, and in the case that a USB cable output is provided, an additional USB controller 66 may be provided to ensure USB signals comply with the USB communications standard.
  • A SIM module 68, capable of receiving a conventional SIM card, is provided in communication with the modem 46 for enabling subscription to a particular wireless telecommunications network provided by a service provider by whom the SIM card is issued, and of course, an antenna 30 provides a means for collecting wireless signals being transmitted through space, said antenna again communicating with said modem 46 to deliver a useful signal thereto. Additionally, a reset facility in the form of a switch 68 or the like which causes a soft and/or hard reset of the modem 46 may be provided. Such facility may also be extended to the regulator 44 if required.
  • Referring to FIG. 6, it can be seen that the GPRS modem 46, which is now available as an “off-the-shelf” type component, is mounted in adjacent relationship with the battery 16, optionally to the alternate side of the PCB 28 on which the battery is mounted.
  • The assembled CLA is shown in FIG. 7, and the LEDs 48, 50, are either made visible by virtue of the cover 14 having translucent or less opaque portions in the regions proximate the LED locations therewithin, or by having suitable apertures thereat.
  • In summary therefore, a cigarette lighter adapter (CLA) is disclosed comprising a body and a barrel portion extending therefrom, said barrel portion including a first and second contacts respectively connectable within a vehicle cigarette lighter to be powered therefrom, said CLA being additionally provided with at least one primary electronic circuit within the body thereof, connected directly or indirectly to said contacts, and an output to which a power signal is capable of being delivered. The CLA is characterized in that it includes an antenna component in electrical communication with said primary electronic circuit, the latter delivering at least one of the antenna signal, a electronically processed version thereof, or data derived from the electronic processing thereof, to said output in conjunction with said power signal, the source of which is derived from said contacts or from an alternative power source provided within the body of said CLA, such as an on-board rechargeable battery, said power signal source further providing power to said primary electronic circuit to enable operation thereof. Further features include the provision of one or more secondary electronic circuits within the CLA to provide power management, regulation, control, switching, and/or battery re-charging functions, and the segregation of the primary and secondary electric circuits so as to ensure effective heat dissipation. Most preferably, the CLA is provided with vents adjacent which at least one of the secondary electronic circuits is provided.

Claims (16)

1. A cigarette lighter adapter comprising a body and a barrel portion extending therefrom, said barrel portion including a first and second contacts respectively connectable within a vehicle cigarette lighter to be powered therefrom, said cigarette lighter adapter being additionally provided with at least one primary electronic circuit within the body thereof, connected directly or indirectly to said contacts, said cigarette lighter adapter including an antenna component in electrical communication with said primary electronic circuit which primarily derives a source of power from said contacts, wherein
said cigarette lighter adapter further includes a subscriber identity module (SIM) capable of receiving a SIM card and being in electrical communication with said primary electronic circuit, and a wireless transceiver in electrical communication with said primary electronic circuit and capable of wirelessly communicating
the antenna signal,
a electronically processed version thereof,
data derived from the electronic processing thereof
to a remote device.
2. A cigarette lighter adapter according to claim 1 wherein an on-board source of power is provided as an alternative to the source of power derived through the contacts
3. A cigarette lighter adapter according to claim 1 further including one or more tertiary electronic circuits providing at least one of power management, control, regulation, switching and recharging functions, wherein at least one of the tertiary electronic circuits is separate from the primary electronic circuit and wireless transceiver but in electrical communication with at least one thereof.
4. A cigarette lighter adapter according to claim 2 further including one or more tertiary electronic circuits providing at least one of power management, control, regulation, switching and recharging functions, wherein at least one of the tertiary electronic circuits is separate from the primary electronic circuit and wireless transceiver but in electrical communication with at least one thereof.
5. A cigarette lighter adapter according to claim 4 wherein at least one tertiary electronic circuits is provided to implement a recharging function, said at least one tertiary electronic circuit being in electrical communication with both said contacts and said on-board power source and re-charging the latter when a source of power is derived through the contacts.
6. A cigarette lighter adapter according claim 1 wherein the primary electronic circuit is a wireless telecommunications protocol processing circuit.
7. A cigarette lighter adapter according to claim 1 wherein the primary electronic circuit is a wireless modem.
8. A cigarette lighter adapter according to either claim 6 wherein the wireless telecommunications protocol processing circuit is adapted for at least one of the following wireless telecommunications protocols: GSM, GPRS, EDGE, HSDPA, CDMA, WCDMA, WiFi, WiMax.
9. A cigarette lighter adapter according to claim 1 wherein the cigarette lighter adapter output is a cable in direct or indirect electrical communication with said primary electronic circuit.
10. A cigarette lighter adapter according to claim 1 further provided with one or more LEDs indicative of at least one of: the charging of an on-board power source, the existence of a source of power for the cigarette lighter adapter from a live vehicle cigarette lighter, and the processing of signals within the primary electronic circuit received by the antenna.
11. A cigarette lighter adapter according to claim 10 wherein cigarette lighter adapter is provided with at least two LEDs, a first LED providing an indication of the existence of a source of power for the cigarette lighter adapter, and a second LED for providing an indication of the processing of signals received by the antenna.
12. A cigarette lighter adapter according to claim 11 wherein the LEDs are of different colours.
13. A cigarette lighter adapter according to claim 1 wherein the antenna is a substantially flat component affixed to the inside surface of a part of the body of the cigarette lighter adapter.
14. A cigarette lighter adapter according to claim 1 further provided with vents in the body through which hot air, generated as a result of contact with the hot-working electronic circuits, can escape.
15. A cigarette lighter adapter according to claim 1 wherein the output is a serial output selected from one of: a USB connector or cable, a UART connector or cable.
16. A cigarette lighter adapter according to any preceding claim wherein the primary electronic circuit is capable of establishing a wireless connection using at least one of a subscriber identifier (IMSI), a modem identifier (IMEI), and an identifier of a PND (PND UID).
US12/926,972 2007-10-10 2010-12-21 Enhanced cigarette lighter adapter Abandoned US20110095600A1 (en)

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