WO1998019223A1 - Systeme ameliore de raccord d'alimentation electrique multivoltage pour dispositifs electroniques multiples, et dispositifs utilises avec ce systeme - Google Patents

Systeme ameliore de raccord d'alimentation electrique multivoltage pour dispositifs electroniques multiples, et dispositifs utilises avec ce systeme Download PDF

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Publication number
WO1998019223A1
WO1998019223A1 PCT/US1996/017662 US9617662W WO9819223A1 WO 1998019223 A1 WO1998019223 A1 WO 1998019223A1 US 9617662 W US9617662 W US 9617662W WO 9819223 A1 WO9819223 A1 WO 9819223A1
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WO
WIPO (PCT)
Prior art keywords
power
identification information
electronic
electronic device
cable
Prior art date
Application number
PCT/US1996/017662
Other languages
English (en)
Inventor
Neal J. Castleman
Original Assignee
Castleman Neal J
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
Application filed by Castleman Neal J filed Critical Castleman Neal J
Priority to PCT/US1996/017662 priority Critical patent/WO1998019223A1/fr
Priority to AU76684/96A priority patent/AU7668496A/en
Publication of WO1998019223A1 publication Critical patent/WO1998019223A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/14—Balancing the load in a network
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/44—The network being an on-board power network, i.e. within a vehicle for aircrafts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/46—The network being an on-board power network, i.e. within a vehicle for ICE-powered road vehicles

Definitions

  • This invention relates generally to supplying electrical power to electronic and other electrical devices; and more particularly to systems and apparatus for providing electn- cal power to operate any of a multiplicity of such devices.
  • a power adapter is used as part of, or instead of, the special power cable of my earlier invention — and the adap- ter per se may be at either end of the cable;
  • identifying information for an electronic device is passed from, or through, a power adapter to a power-supply system, rather than through a cable as such;
  • identifying information is held in a memory unit within a power adapter, rather than in a cable;
  • some forms of the invention as claimed are, or include, an electronic device (rather than a cable) that holds a memory unit for identifying the device to a power- supply system.
  • multiuser facility I mean to encompass a facility used by just a small number of people at a time, or even one person at a time — but in which the people or person using the facility at any time are typically different from the people or person using it at other times — and in any event the individual device cannot be specified or identified in advance.
  • Mobile facilities which is to say vehicles — such as ships, airplanes, trains, buses and automobiles are examples of such multiuser facilities.
  • stationary facilities of interest for present purposes m- elude transportation terminals such as airport lounges.
  • supplying power in an incorrect form may also cause problems more intimately related to the power-supplying equipment — by damaging that equipment, or taking it temporarily out of service.
  • Such equipment may be particularly limited in current-carrying capacity or in ability to accept loads or signals reflected from the electrical device back into the supply.
  • repair or replacement of a mobile power supply en route may be unfeasible on account of the limitations inherent in travel .
  • some candidate solutions such as fuses and circuit breakers within vehicles pose their own inherent undesirable costs and inconveniences.
  • each electronic device (computer, telephone, tape re- corder etc.) must have a cable terminated compatibly with the receptacle.
  • a compatible termination or adaptor is readily provided, but — by giving all devices in common an equal access to the facility power supply — only makes more severe the more-fundamental device-compatibility problems discussed earlier.
  • Some manufacturers have attempted to reduce the maze of power-supply modules which travelers need, by providing custom battery-charger/power-supply input units that operate on any voltage from about 100 through 250 Vac, and at 50 or 60 Hz. Some such units may automatically test the voltage and frequency available, and modify their own power-input characteristics accordingly.
  • each code can be made unique, or substantially so.
  • a large number of chips can be made with the same code — for use in distinguishing associated people or items from one another by categories .
  • the DS 2400, 2401 and 2502 circuit devices manufactured by Dallas Semiconductors, Inc., of Dallas Texas each have a numerical capacity equal to the fourteenth power of ten, or one hundred trillion, and can be manufactured in such a way that no two of them hold the same number.
  • the numerical range of ROMs and PROMs now on the market exceeds the earth's population by several orders of magnitude.
  • the above-mentioned Dallas Semiconductors devices are called by the firm its “Touch Memory” chips, as the devices are able to read or write with momentary contact.
  • the firm houses each chip in a stainless steel container which the firm calls a "MicroCan” .
  • This coin-shaped container is 16.3 mm in diameter and 3.2/5.8 mm in height.
  • the Dallas chips housed as just described, are advertised for use in identifying a great variety of different things and entities such as people, livestock, or warehoused merchandise; for instance it is now advertised as useful for identifying different kinds of batteries in an inventory. As mentioned earlier, it has not been suggested heretofore that such ROM, PROM etc. chips might have any application to solving the multiple-power-supply problems discussed previously.
  • control can be made automatic — based upon information about the device which is to use the supplied power.
  • information about the device which is to use the supplied power can take either of two broad forms: (1) a statement of the power specifications and (2) identification of the device to be powered, from which identification the power specifications can be found by reference to a suitable tabulation linking the identification and specifications for a great many different devices .
  • information about each device can be encoded in a memory chip and provided to the power-supply apparatus whenever that device respectively is connected to receive power from the supply apparatus . In other words each device can be caused to have an associated respective memory chip which provides the needed identification.
  • the part of such a power-supply apparatus that accepts and analyzes information from the individual-device memory chips, and controls the power supplied to the powered device, can nowadays be made very small and inexpensive.
  • the identifying memory chip associated with each powered device can be very small and inexpensive.
  • the physical arrangements for association of a memory chip with each powered device are subject to considerable variation.
  • the chip may be built into the device; for already-existing devices the chip may be built into a new power cable (preferably into one of the connectors at the two ends of the cable) for each device.
  • such a cable may be completely passive, except of course for the readable information-carrying chip.
  • This may be a maximally economical approach, as to the cable itself; however, as will be seen later a cable that includes or is associated with a power adapter may turn out — at least in certain environments — to be maximally economical overall .
  • the costs of these elements cannot be zero, but through their use a single power supply — what might be called a "universal" power supply — can be used for virtually any portable apparatus, thereby introducing a major economy in terms of manufacturing and distribution for power supplies, as suggested previously.
  • a more important economy is that a single power-supply apparatus, provided in and preferably built into a multiuser facility, can be used to supply the portable-electronics needs of essentially any user who appears in the multiuser facility.
  • This latter economy can be enjoyed particularly in mobile facilities such as airplanes where space and weight allowances for such functions are stringently limited — and where power misapplication can bear severe consequences as pointed out in the preceding section of this document.
  • each approved device be supplied with electrical power according to its own proper power specifications, but in addition each device can be screened to determine whether it is in fact an approved device for use in the environment of each facility respectively — and, if not, the power specifications for that combination of device and facility can be established, as suggested earlier, to be "no power".
  • Such versatility can be limited to only more- expensive models actually intended for use in multiuser facilities.
  • Some multiuser versions of the apparatus those intended for plural and especially multiple concurrent use of power by plural or multiple devices, may also be made to take advantage of economies possibly available through sharing of a central or common evaluation/tabulation module for the facility; in addition to manufacturing economy it will be understood that economy can be realized in the updating procedure by replacing or reprogramming only the central module.
  • the adapter can receive a standard a. c. voltage from a system receptacle and perform the necessary transformation.
  • a standard a. c. voltage from a system receptacle and perform the necessary transformation.
  • the requirement to provide the particular needed voltage can be absorbed by the end user (i . e. , the party which wishes to use some particular obscure voltage requirement) , and the system need merely check the adapter to determine whether it and its associated electronic device are compati- ble with the supply system.
  • compatible may only mean, for example, acceptable in terms of (1) total power required and (2) electromagnetic emissions. It should be recognized that the adapter, too, has some weight; however, the individual carrying a portable electronic device ordinarily carries an adapter with the device anyway. Therefore with the power-adapter systems according to my invention there is little or no net added weight.
  • the invention is a power-supply connection system for providing electrical power, from a source of electrical power, to operate any of a multiplicity of electronic devices.
  • the system includes some means for receiving electrical power from such a source; for purposes of generality and breadth in expression of the invention these means will be called simply the "power-receiving means".
  • the system includes some means for passing electrical power to any of such electronic devices. Again for breadth and generality these will be called the "power- passing means”.
  • the system also includes some means for accepting electronic-device identification information from any particular one of such electronic devices. These means, which will herein be designated the “information-accepting means", are associated with the power-passing means.
  • the system includes some means for using the identification information to select power parameters, for passage of power from the power-receiving means and through the power-passing means to the particular one device.
  • These means include a programmed digital electronic microprocessor, and will be called the "programmed digital electronic microprocessor means" or more simply “microprocessor means”.
  • the system includes some means for activating the power-passing means to apply power therethrough to the particular one device according to the power parameters. In other words, these activating means both (1) activate the power-passing means and (2) apply power through the power-passing means to the particular one device, in accordance with the parameters selected by the microprocessor means .
  • this first broad form of the invention provides a single, universal power supply that can be used to supply power to virtually any portable electronic device of suitable power demand, whether in a multiuser facility or in some private context — such as a home or personal car.
  • This universal supply thereby introduces important economies of manufacture, inventory and distribution, together with some provision for safety against power misapplication.
  • this first major aspect of the invention even in this broad form thus resolves prior-art problems, nevertheless this aspect of the invention is preferably practiced with certain additional features or characteristics that enhance enjoyment of the advantages of the invention.
  • the system further includes at least one electrical cable, with termination that is standard for connection to any of such devices of the multiplicity.
  • This at least one cable includes conductors that serve as part of the power-passing and information-accepting means .
  • the electronic device provides the identification information into the information-accepting means of the cable.
  • the conductors include:
  • the conductors serving as part of the information-accepting means are the identical conductors that serve as part of the power-passing means.
  • another preferable feature particularly in a case where the system is for use in conjunction with any of a multiplicity of cables that are respectively associated with such electronic devices of the multiplicity — is provision of at least one electrical connector receptacle, with terminal configuration that is standard for connection to any of such multiple cables.
  • the at least one receptacle includes terminals that serve as part of the power- passing and information-accepting means; and the associated cable and electronic device in conjunction provide the ldentification information into the information-accepting means of the connector receptacle .
  • Another preferable feature for inclusion in the system is a tabulation of identification information with corre- sponding power parameters, for each of a multiplicity of electronic devices, held in association with the microprocessor means.
  • the tabulation preferably comprises corresponding power parameters that encompass passing no power to any device of the class of electronic devices.
  • the power-passing and information-accepting means are connected by a detachable connector to at least one of (1) the microprocessor means and (2) one of such electronic devices.
  • the system of the first main facet of the invention also preferably includes the source of electrical power.
  • the power-passing and information-accepting means include an electrical cable having a termination that is standard for connection to any of such electronic devices of the multiplicity.
  • the parameters for each of such devices comprise at least one parameter selected from the group consisting of supply voltage, supply impedance, and supplied current. In regard to a system according to the latter preference, it is particularly desirable that the parameters for each of such devices m- elude at least supply voltage and supplied current.
  • the identification information include at least one of the power parameters.
  • the identification may include a device code or device-category code for use in a lookup table that has all the power parameters, and the at least one power parameter is used as redundant cross-checking information to validate that the information coming from the device-associated memory chip is valid.
  • the identification information simply includes the power parame- ters as such, so that no lookup function is needed.
  • the invention is a power-supply connection system for providing electrical power from a source of electrical power in a facility, to operate a plurality of elec- tronic devices. Each such device is one of a multiplicity of electronic devices that are compatible with the facility.
  • the system includes power-receiving means as before.
  • This system also has some means, including plural connection ports, for passing electrical power to a plurality of any of such compatible electronic devices, substantially concurrently; as will be understood these "power-passing means" are related to the power-passing means of the first aspect of the invention but with a difference of being configured for plural operation.
  • a preferred embodiment of this second main facet of the invention also includes some means, associated with the power-passing means, for accepting, at any of the plurality of ports, electronic-device identification information from any particular one of such electronic devices.
  • These information-accepting means as will be understood are, analogously, related to the like-named means of the first main facet of the invention.
  • programmed digital elec- tronic microprocessor means for using the identification information to select power parameters, for passage of power from the power-receiving means and through the power-passing means to each particular one device.
  • such embodiments also include some means for activating the power- passing means to apply power therethrough to any of such compatible electronic devices, substantially concurrently, according to their power parameters respectively.
  • the foregoing may represent a definition or description of the second principal aspect or facet of the invention in its most broad or general form; however, as before the second main facet of the invention even in this very broad form may be seen to resolve difficult problems of the prior art.
  • this general form of the second primary aspect of the invention solves the particularly difficult problems of supplying electrical power expeditiously and safely to plural or multiple users' devices concurrently.
  • the system include some means, controlled by the processor means, for alerting personnel of such facility in event identification information from an incompatible electronic device is received.
  • the invention is a power cable for use in connecting a particular electronic device to an electrical power-supply system in a facility — for passage of electricity from the system to the device.
  • the cable includes a first electrical connector, at one end of the cable, for connection to the electronic device; and a second electrical connector, at another end of the cable, having terminals for connection to the power-supply system.
  • the cable includes a memory device in one of the connectors.
  • the device is interconnected with at least one of the terminals, for connection to the power-supply system — for identifying the electronic device to the power- supply system through the terminals.
  • the cable of this third aspect of the invention makes the desired interconnection possible at only relatively minor expense. That expense is, namely, the cost of a cable that may be standard in every way except for (1) inclusion of a chip whose contained identification information matches the power requirements of the device for which it is purchased, and optionally also (2) some label, color-coding, cable imprinting or the like that identifies the electrical device or devices with which it should be used.
  • the device-end connector of the cable may be configured for the particular device or category of devices, so as to preclude or deter misconnection of a cable for one electrical device, or device category, to some other device.
  • this third facet is practiced in conjunction with further features to optimize its benefits.
  • the memory device identify the electronic device for validation of compatibility of the electronic device with the facility. It is also preferred that the memory device be in the second electrical connector, as this arrangement in some cases may avoid including an additional conductor along the length of the cable. For now the memory device is best a Dallas® DS 2400, 2401 or 2502; any later refinements — or substantial equivalents — may be equally or more desirable. As another exam- pie it is preferred that the memory device be a ROM chip, and a two-pin device.
  • the fourth aspect of the invention is somewhat related to the first, but here involves use of a power adapter rather than a cable that might be completely passive. More specifI- cally, in preferred embodiments of this fourth facet, the invention is a power-supply connection system for providing electrical power, from a source of electrical power, to operate any of a multiplicity of electronic devices, at least one of which electronic devices has an associated power adapter.
  • This system includes means for receiving electrical power from such a source, and means for passing electrical power to such a power adapter that is associated with any of such electronic devices.
  • the system also includes automatic means for automatically accepting electronic-device identification information for a particular device which is associated with that particular one power adapter.
  • the accepting means are associated with the power-passing means.
  • the accepting means accept the ldenti- fication information from or through any particular one of such power adapters respectively.
  • the system includes programmed digital electronic microprocessor means for using the identification information to select power parameters, for passage of power from the power-receiving means and through the power-passing means to the particular one device-associated power adapter. Additionally included are some means for activating the power-passing means to apply power therethrough to the particular one power adapter according to the power parameters.
  • the fifth primary facet of the invention is related to the above-discussed second aspect, but once again focuses on use of a power adapter, rather than use of a cable that might be entirely passive.
  • a preferred embodiment of the invention in its fifth main facet is a power-supply connection system for providing electrical power from a source of electrical power in a facility, to operate a plurality of electronic devices .
  • Each such device is one of a multiplicity of electronic devices that have associated power adapters which are compatible with the facility — "compatible" being defined as discussed earlier.
  • This system includes some means for receiving electrical power from such a source.
  • the system also includes automatic means, including a plurality of connection ports, for automatically passing electrical power to a plurality of any of such compatible power adapters respectively, substantially concurrently.
  • the system includes some means, associated with the power-passing means, for accepting, from any particular one of such power adapters at any of the plurality of ports, electronic-device identification information for a particular one device associated with that particular one power adapter.
  • programmed digital electronic microprocessor means for using said identification information. These means use the identification information to select power parameters, for passage of power from the power- receiving means and through the power-passing means to each particular one power adapter for its associated device.
  • a preferred system according to the fifth main aspect also includes some means for activating the power-passing means to apply power therethrough.
  • the power thereby passes to any of such compatible power adapters for the associated electronic devices, substantially concurrently, according to their power parameters respectively.
  • This aspect of the invention too has associated preferences which will optimize the enjoyment of its benefits; these preferences will become clear shortly.
  • a sixth major independent facet of the invention is related to the third, but here again particularly focuses upon use of a power adapter.
  • the invention itself is a power adapter .
  • This power adapter is for use in connecting a particular electronic device to an electrical power-supply system in a facility — for passage of electrical power from the system to the device through the adapter.
  • the power adapter includes a first electrical connector for connection to the electronic device, and a second electrical connector having terminals for connection to the power-supply system.
  • the power adapter also includes some means for receiving electrical power at the second electrical connector and deriving therefrom electrical power in a different form. This reformed power is for provision to the electronic device at the first electrical connector.
  • the power adapter of this sixth major independent facet of the invention includes a memory unit interconnected with at least one of the terminals, for connection to the power-supply system.
  • This memory unit is for identifying the electronic device to the power-supply system through the at least one terminal .
  • This power adapter of the sixth aspect of my invention is advantageous in that it enables enjoyment of the benefits described above for the fourth and fifth aspects of the invention. Several preferred details of features and characteristics for this sixth aspect of the invention will appear from the remainder of this document.
  • a seventh major independent facet of the invention is disclosed in my previously mentioned patent. This aspect of the invention addresses placement of a memory unit in the electronic device itself, rather than in a power adapter or cable.
  • the invention is an electronic device, for use with an electrical power-supply system. More specifically it is for use with an electrical power-supply system which supplies power to any of a multiplicity of electronic devices, in response to received identification information for each of the supplied devices.
  • the identification information is for use in determining power parameters for each of the devices respectively.
  • the electronic device includes at least one main chassis.
  • This electronic device also includes identifying means for providing identification information to the system, for identifying the device to the system.
  • the device has connection means for receiving power from the system and transmitting identification information from the identifying means to the system.
  • the identification information identifies the device to the system, through the connection means.
  • an eighth major facet of the invention is closely related to the seventh aspect discussed above, but includes several of the associated preferences .
  • the identifying means include a memory unit substantially at or within the mam chassis for providing identification mforma- tion to the system.
  • the identification information identifies the device to the system for validation of compatibility of the device with the system, and for establishing necessary power parameters for the device. These parameters include supply voltage, supply impedance, and supplied current — or combinations of these.
  • the memory unit be a programmed ROM chip. More specifically I prefer that it be a memory chip in the Dallas® line, ideally model DS 2400, 2401 or 2402, or later refinements if any, and substantial equivalents if any.
  • the device itself is preferably for use in performing a useful function such as, but not limited to, computing, communicating, illuminating, calculating, displaying, examin- mg, recording, reproducing, printing, fastening or controlling. It preferably includes one or more operating electronic memory modules used directly in and as part of such a useful function.
  • the identifying means preferably include a memory unit that is distinct from every operating electronic memory module of the device. Those skilled in the art will appreciate that this is a more practical, simple and economical method than attempting to read the main memory modules of the device. Such attempts in general would require powering up the entire unit — for the purpose of determining whether power can be supplied to the unit 1 — which appears somewhat impractical .
  • Fig. 1 is a block diagram of one preferred embodiment of a power-supply system according to the first or second main facet or aspect of the invention, together with a preferred embodiment of one form of cable according to the third main aspect or facet;
  • Fig. 2 is a like diagram of a system that is one pre- ferred embodiment particularly according to the second main facet of the invention, together with several forms of cable that are preferred embodiments according to the third main aspect;
  • Fig. 3 is an isometric or perspective drawing of a cable according to the third main aspect of the invention, very schematically shown ready for use in a representative multiuser facility;
  • Fig. 4 is a logic-flow diagram representing operation of firmware in the Fig. 1 or Fig. 2 power-supply system to accept information from a device or device-associated memory chip and in response supply electricity to the device, if eligible;
  • Fig. 5 is a diagram like Fig. 1 but relating to a power adapter rather than a passive cable
  • Fig. 6 is a diagram like certain portions of Fig. 2 but relating to power adapters ;
  • Fig. 7 is an isometric or perspective drawing like Fig. 3, but for a system that uses power adapters.
  • electrical power from a source 10 is provided through a power-supply system 20 of the invention, and through a cable 30 of the invention, to an electrical device 40.
  • the supplied device 40 is most typically but not necessarily a portable electronic device.
  • the supply system 20 receives power from the source 10 through receiving means that generally include a pair of leads/terminals 11 of the source and 21 of the supply system.
  • terminals may be needed because the source 10 and supply system 20 are separate or separately packaged; if instead the source 10 were encompassed and pack- aged within the system 20, then naturally the terminals could be omitted and the leads 11, 21 consolidated.
  • a first voltage regulator 22 takes power from the input leads 21 and produces at its outputs 22', 23 stabilized voltage. Voltage at one of those outputs 23 is applied to power a digital electronic microprocessor 23 that includes or is associated with a preferably reprogrammable memory 25.
  • the microprocessor 24 also receives identification information 33 about the device 40.
  • the microprocessor responds by developing and applying a signal 27 to activate and control another, controllable regulator 28 within the supply system 20.
  • a signal 27 Any suitable single-line, multiline, digital or analog signal 27 may be used.
  • the microprocessor is programmed to develop the signal 27 based upon use of the externally supplied information 33 in conjunction with information stored in the microprocessor- associated memory 25. More specifically, the microprocessor performs these tasks in such a way that the controllable regulator 28 supplies power at a voltage, current, etc.
  • Output power from the controllable regulator is impressed upon power-passing means that include output leads/- terminals 29 of the supply system.
  • the power-passing means also include components of the cable 30, when connected to those output terminals 29, for carrying power 37 to the supplied device 40.
  • the cable 30 includes — at its end proximate to the supply system 20 — a connector 31 whose three leads/terminals 34, 36 are respectively configured to mate with the previously mentioned three information and power leads/ter- minals 26, 29 of the supply system.
  • the external configuration of this near-end connector 31 accordingly should be standard for all types of cable 30, except that — as will be seen shortly — some types of cable 30 require only two connections, in which case no separate information terminal need be included.
  • the near-end connector 31 houses a memory 32, one of whose terminals is connected to the independent information terminal/lead 34 of the connector 31.
  • the other terminal 35 of the memory 32 is connected to one of the power terminals/- leads 36, and thereby to the mating terminal/lead 29 in the supply system 20.
  • One mating set of terminals/leads 36, 29 thus serves as a common connection for both the information- accepting and power-supplying functions of the system and cable.
  • the memory 32 in the near-end cable connector 31 supplies the previously mentioned external information 33.
  • the information is transmitted by passage of electrical signals via the information terminals/leads 34, 26 (and one set of power terminals/leads 36, 29) to the microprocessor 24.
  • the near-end connector 31 typically there is an internal housing that contains the memory 32.
  • the information held within the memory is specific to the device 40 to which power is to be supplied, or at least to a category of such devices.
  • the memory 32 may be a ROM, PROM (one-time-w ⁇ table ROM) , EPROM, EEPROM, RAM etc. — whichever may be best suited for the logistics of preparing a number of memory units 32 to represent some class or category of electronic devices 40 to supply systems 20.
  • some devices 40 are vastly more numerous than others.
  • some types of memories 32 depending on relative economy of scale etc. — may be preferable for some devices 40, and other very different types may be preferable for other devices 40.
  • the cable 30 proper Issuing from the near-end connector 31 is the cable 30 proper, which is to say two elongated power-carrying leads 36 terminating in a far-end connector 30 with two power-carrying terminals 39.
  • This far-end connector 30 and its terminals like the information held in the memory 32, generally speak- mg — are specific to devices 40 of a particular type (or category of types) , to which power is to be supplied; accordingly the connector 38 and terminal 39 can be configured or shape-encoded to permit connection only with devices 40 of the intended mating type or category. As evaluated from the perspective of the supplied device
  • the entire power-supply system 20 and cable 30 engage and function as if they were a completely dedicated or specific supply arrangement for the particular device 40. Accordingly the operating components (not shown) of the device 40 are simply connected — or remain connected — in conventional fashion, without need for any special provisions on account of the power-supply system 20 and cable 30, to power-input leads 41 within the device 40.
  • the Fig. 1 embodiment is advantageous for (1) its rela- tive economy, in that placement of the memory 32 in the near- end connector 31 obviates need for running the third lead 34 the length of the cable; (2) its relative simplicity in that the memory 32 has its own terminal/lead 34 separate from the power terminals/leads 36 and so requires no added measures for protecting the memory 32 against or extracting its information signal 33 from the power 37; and (3) the absence of any requirement for retrofitting the supplied device 40 with internal memory to supply the needed identification informa ⁇
  • this embodiment has cost drawbacks in that (1) the third terminal 34 introduces some added cost, (2) elements in both — rather than only one — of the connectors 31, 38 must be specific to the supplied device 40, and (3) for a new supplied device 40, building the cable 30 with provision for a memory unit 32, and associating the correct memory unit 32 with each cable 30, is more expensive than building the memory-unit 32 function directly into the new device 40 as part of its manufacture.
  • the third terminal 34 introduces some added cost
  • elements in both — rather than only one — of the connectors 31, 38 must be specific to the supplied device 40
  • (3) for a new supplied device 40, building the cable 30 with provision for a memory unit 32, and associating the correct memory unit 32 with each cable 30, is more expensive than building the memory-unit 32 function directly into the new device 40 as part of its manufacture.
  • the Fig. 2 system is capable of serving only a single device as in Fig. 1 — and also is capable of supplying power to numerous devices 140a-140z, when present, concurrently. As symbolized in Fig. 2 by absence of cables and supplied devices at some representative ports b, c, k, the system can operate properly with cables and devices attached at all, any, or none of its ports a-z.
  • the source 110, first regulator 122 and microprocessor- associated memory 125, and each of numerous three-terminal ports a-z are generally similar to the corresponding elements 10, 22, 25 and 26/29 of Fig. 1.
  • a controllable multiport regulator 128 for use in the Fig. 2 system might also be simply an aggregation of individual regulators 28 (Fig. 1) , each with its own separate control path (I . e. lead, wire pair, bus etc.) 27 from the microprocessor.
  • the regulator 128 instead may preferably be constructed to use as many as possible of its components in common for the ports a-z.
  • the microprocessor may have a single ldentification- mformation-accepting path 126 from the regulator 128, and a single control path 127 to the regulator 128.
  • an electrical bus system within the regulator 128 may route identification information from the individual ports a-z (for instance, from any of the individual information terminals 126a-126z) to the microprocessor's single information path 126.
  • Such a bus system also may route activation and power-specification signals from the microprocessor's single control path 127 to individual modules (not illustrated), within the regulator 128, feeding the individual power terminals 129a-129z.
  • a bus-controllable arrangement requires a conventional addressing subsystem, guided by the microprocessor 124 to direct the passage of information and control signals (and if desired even power) along common bus elements in an orderly, mutually noninterfe ⁇ ng way.
  • the microprocessor 124 programming in the Fig. 2 system while encompassing the basic functions of the processor 24 in the elemental Fig. 1 system, also includes timesharing and addressing provisions necessary to such orderly interfacing with the controllable regulator.
  • Each of the Fig. 2 ports a-z is a three-terminal set, to accommodate three-terminal cable types including the cable 30 (Fig. 1) . For reference purposes this is illustrated at port y . of Fig.
  • identification information from a memory 143a, 132j_ within the supplied device 140a or cable 130 is read into the microprocessor 124 via the power leads 129a, 129j — using various provisions that will be discussed later in this document.
  • typical memory devices 143a, 132 are intrinsically capable of standing off — and in some commercial packages may be provided with internal guarding against — relatively modest supplied voltage, as for example ⁇ 3 Vdc. Such devices may be damaged upon application of typical battery-recharger input voltages such as for example 110 to 240 Vac.
  • each memory 143a, 132j_ is specifically associated — by definition, for present purposes — with a known voltage specification. It is therefore straightforward to determine for each manufacturing project whether a discrete guard element 149a, 136 ' need be interposed to protect the respective memory chip 143a, 132j_.
  • the supplied device 140a illustrated at the first port a of the Fig. 2 supply system is taken to be a device of new manufacture with a built-in memory 143a, according to the invention.
  • incorporating provision for the memory 143a into initial manufacture of the device 140a is especially inexpensive; and likewise incorporating provi- sion for a voltage-guarding component 149a, if needed, is also inexpensive.
  • a memory unit 143z into a newly manufactured device 140z, and mterconnection of the device 140z with the supply system 120 through a three-wire connector 144z-139z and cable 130z.
  • This configuration may be reasonably economical, particularly e. ⁇ . for a device 14Oz which operates on relatively high voltage and for which a relatively short cable 130z is adequate .
  • the supplied device 140 illustrated at the second occupied port j. is taken to be an already-existing device — lacking a built-in identification-information memory according to the invention.
  • the memory 132j_ with its device-specific contents is housed within the far-end connector 138j_ — that is to say, the connector which must be mechanically configured to mate with the device connector 14l anyway.
  • the memory 132 is connected across the power leads/terminals 136j_/139_. This connection point is just across the supplied-device power-input connector 139 /141 from the port-a position (within the supplied device 140 ) just discussed, and so is electrically equivalent — but confers the major economy of avoiding a retrofit of the supplied device 140 .
  • the memory 132j_ should be protected 136 ' against the power applied to the power terminals/leads 136_/139J for relatively high-voltage devices 140 . For economy's sake such protection may be better omitted for relatively low-voltage devices.
  • ports a and j . are regarded as sufficiently attractive (for their particular simplicities and economies) to become standard, then all the ports a-z may be made two-terminal ports by elimination of the terminals 126a-126z — as may the analogous port in the Fig. 1 system by omission of the separate information terminal 26. In that event the necessary information-signal connections may be made, before application of power, through the power ports 129a-129z, 129 as will be described shortly.
  • the cable 130j_ shown at the second occupied port in Fig. 2 is also represented mechanically in Fig. 3, but with somewhat schematic representations of a facility, some supply-system elements, the supplied device 140_, and 5 interconnections.
  • This drawing includes conventional passenger-accommodating provisions 90 of an aircraft, a conventional or other electricity-usmg device 140j_ such as a so-called "notebook" computer ready for use within such a mobile facility, and two representative conveniently located
  • FIG. 2 elements such as the power source 110, first regulator 122, processor 124 and associated memory 125, and most internal parts of the multiport regulator 128 may be centrally located with respect to the aircraft or other is facility, and are not shown in Fig. 3. Wiring connections from the centrally disposed multiport regulator 128 to the individual user sites and corresponding ports 126 /129 , 126k/129k etc. are distributed throughout the passenger accommodations, but most typically — for reasons of esthet-
  • Fig. 3 as in Fig. 2 the near-end connector 131j_ is shown as a two-terminal unit, but ready for engagement 95 with the three-terminal port 126j_/129 of the supply system.
  • the near-end connector housing 131_ nevertheless is advantageously configured for mating 95 of its two terminals 136j_ with exclusively the two power terminals 129j of the supply- system port.
  • the far-end connector 138 and particularly its terminals 139j. are mechanically configured — as symbolized by a triangular-section element (Fig. 3) — for engagement 96 with, exclusively, power-input terminals
  • FIG. 40 taken equally well as representing the port-a (Fig. 2) two- conductor configuration — with memory 143a built into the supplied device 140a.
  • Fig. 3 By visualizing the connector 131j_ as having one additional terminal or pin, the reader will also find Fig. 3 to be generally representative of the three- terminal configurations illustrated at ports r, y and z, and in Fig. 1.
  • This port-r configuration identification information is supplied from a memory 132r housed in the far-end connector 138r.
  • This port-r three-wire cable configuration is conceptually related to the corresponding two-wire form, just discussed, at the second occupied port j..
  • the three-wire configuration shown at the third occupied port r is advantageous in that no voltage-guard element is needed, and may be especially desirable for some high-voltage devices — particularly devices needing only relatively short cables .
  • these advantages are analogous , in relation to the related two-wire configuration at the second occupied port 2 .1 to those offered by the three-wire built-in configuration at port z in relation to the two-wire built-in configuration at port a.
  • Still another form (not illustrated) of my invention is a configuration with the memory housed in the near-end cable connector — as at port y, and as in Fig. 1 — but connected across the power leads as at the first two occupied ports a, 2. of Fig. 2.
  • that configuration may require guarding as 15 149a, 136 ' in Fig. 2.
  • I regard it as relatively undesirable because it incurs the added costs of making both connectors device- specific, but without greatly redeeming itself by saving the cost of a third wire along the full cable length — since there is no third wire beyond the near-end connector. None- theless the configuration under discussion does have some benefit in that the near-end connector need have only two terminals rather than three (as at port y . in Fig. 2) .
  • the microprocessor 124 initially is quiescent 50 (Fig. 4) with respect to power application at power terminals of that port n — waiting for a connection at that port n.
  • This initial condition of quiescence is relatively active in terms of logical functions of the microprocessor, as that unit is programmed to circulate continuously through a connection-monitoring loop 50-54.
  • the processor may check at intervals in the range of, for example, once each five seconds to several times each second for each of several possible connections to a memory 32, 132, 143.
  • the processor 24, 124 may:
  • the system returns 54 to begin the process again.
  • the system may be programmed, however, to digress (not shown) — at any point in the process — from servicing of any particular port n to monitoring or other steps with respect to the other ports.
  • any of the tests 51-53 is positive, the system proceeds to read 55-57 the presented memory 32, 132, 143 in its respective orientation.
  • the steps of testing 51-53 for a connection there may be no physical distinction between the steps of testing 51-53 for a connection and the steps 55- 57 of reading signals from the memory unit; hence in this particular regard the diagram in some practical cases may be regarded as partially conceptual .
  • the system proceeds 58 to the next firmware module 60-68, in which acceptability of the presented device 40, 140 is determined.
  • the processor first receives 60 the identification information into a suitable intermediate storage point within the processor 24 , 124 and then advances 61 to the step of seeking 62 some matching entry in a lookup table that is held in the processor-associated memory 25, 125. If the processor fails to find 64 any such matching entry, then its sequence branches 65 to return 67 to the quiescent state.
  • the processor sounds and/or displays 66, to the local user and/or to centralized operators of the facility 90, an indication that an unacceptable connection has been presented to the supply system.
  • Such an unacceptable connection may represent a device 40, 140 which has been disqualified from use in the particu- lar facility, or has not been submitted for preapproval, for use in the particular facility 90, or which is simply a foreign memory unit not carrying any valid device-identifying code.
  • a connection may represent a paperclip or like metal object such as might be inserted by a small child — or even a deliberate bogus connection such as a jumper wire or screwdriver, as may be presented to the system from time to time by a prankster or vandal .
  • a central alarm may be particularly appropriate to enable aircraft cabin attendants, for example, to deter any misuse of the system.
  • no alarm may be needed as each user will understand if power is withheld that the system has detected some incompatibility.
  • Fig. 4 been drawn as representing a system in which disqualified devices 40, 140 are simply not included in the lookup table.
  • disqualified devices 40, 140 but flagged as disqualified, so that the system alarm 66 can indicate, for the information of the prospective user or system operators, a distinction between presentation of a device that is disqualified and one that is unrecognized. In some instances the user or operators may wish to take suitable remedial action, based upon such information.
  • the system instead proceeds 68 to another procedural module 70-73: supplying suitable power to the presented device 40, 140.
  • This process includes first selecting 70 suitable power specifications.
  • this selection step may be physically unitary with finding 64, 68 the submitted identification in the lookup table.
  • the identification information 33 may itself include or consist of all necessary power specifications, so that the need for a lookup table may be obviated or reduced and the "selection" step 70 may simply consist of reading — and perhaps reformatting — the information from the external memory 32, 132, 143.
  • the system goes on 71 to apply 72 them to activate the controllable regulator 28, 128 through the pertinent port n, and then go on to module 80-86 relating to eventual disconnection of the supplied device 40, 140.
  • the system repetitively cycles 80-83 through testing 82 for disconnection, and failing that test then repeating the same test at frequent intervals such as, for instance, once or twice per second — but when the test 82 is met, the system branches 84 to deactivate 85 the regulator 28, 128 with respect to port n (which is to say, disconnect the power at that port) and then reset 86 to the initial quiescent state 50 for that port n.
  • Fig. 1 schematic may instead appear generally as shown in Fig. 4.
  • Fig. 1 elements that are different from those in Fig. 1 but serve very generally analogous functions are shown with callouts that differ only by the insertion of a prefix "2".
  • identification of the device 240 by way of its power adapter 231 to the system 220, the operation is closely analogous.
  • the overall system now has the benefits of operating with a standard voltage at the terminals 226, 229 regardless of the type of device 240 that is present — and also, because a. c. voltage is in use, with more-economical power transmission to the user station.
  • Fig. 2 schematic for multiple user stations may instead, for a power-adapter-based system, appear generally as shown in Fig. 5.
  • the prefix is “3” instead of "2”.
  • the identification procedure is generally as before, but the overall multiple-user system now has the benefits of a single common, standard a. c. voltage for all users .
  • the system is advantageously programmed to monitor current drawn at each port in use, and compare the current drawn with the current-specifications portion of power specifications found earlier.
  • the system is also advantageously programmed to deactivate the controlled regulator 28, 128 with respect to any port at which a power overload arises when or after power supply is initiated at that port.
  • an overload may be defined with respect to criteria for a facility 90, in addition to criteria selected as part of power specifications for a device 40, 140.
  • Some system designers may prefer to structure the supply system 20, 120 so that in use of two-terminal cables 30, 130 the contents of the memory 32, 132, 143 remain accessible to the processor 24, 124 even after power is supplied to the device 40, 140. Such operation is readily possible, though more costly, through conventional multiplexing of the identification data onto the power lines 29/36, 129/136.
  • the invention is readily implemented in firmware of a dedicated microprocessor within a supply-system apparatus housing 20, 120.
  • the necessary programming and some of the connections according to my invention may instead be provided as software and controlled ports of a general-purpose computer — and thus integrated into the overall operational systems of the facility, thereby expediting any desired updating of the identification- information database 125, as well as customization of the power-supplying system to protocols, organization, security, hierarchies etc. of the facility.
  • the microprocessor 124 may be provided additional information about relevant facility status.
  • aircraft for instance, which provide a passenger-amenities pod at each seat the availability of power through supply systems according to my invention may be conditioned upon use or nonuse of other elements of the pod.
  • the system may, to promote safety, refuse power to a port 129/126 until some deployment of the pod itself is detected; or, to limit power at each seat, refuse power if a video display associated with the pod is also or already in use.
  • the device-specific memory unit 32, 132, 143 may be usable only in aircraft of a particular airline — e. ⁇ . , perhaps one which mails a cable 30, 130 without charge to each preferred passenger or prospect.
  • ROM such as the Dallas® DS 2400 or 2401 (chips in two different voltage options respectively) for supplied devices 40 etc. whose power specifications are very common. I prefer to use ROMs for such supplied devices 40 etc. because ROMs are the least expensive memory units for high-volume applications.
  • PROM For devices 40 etc. whose power specifications are much less common, I prefer to use a PROM.
  • One suitable commercially available unit is the Dallas® DS 2502, which actually is a hybrid — having one kilobyte of one-time-writable memory space or PROM in addition to the same ROM used in the DS 2401.
  • Such a programmable memory unit carries the benefit of reducing inventory, as the unit — and even an other- wise-finished cable 30 — can be programmed at a warehouse or even retail store, after preliminary distribution, to accommodate a considerable variety of supplied devices 40 etc.
  • An alternative for special applications is a more-powerful electronic device such as a RAM, or even a microprocessor programmed to represent or simulate a simpler memory chip
  • a central or other processor in a portable computer or other supplied device 140a, 140z may be programmed (and if need be provided with a small continuous power supply) to serve the functions of the memory

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Abstract

Le système fournit de l'électricité pour faire fonctionner l'un quelconque de plusieurs dispositifs (40) et, plus généralement, pour recevoir d'une source d'énergie (10) de l'énergie qu'il utilise pour alimenter l'un quelconque desdits dispositifs (40). Le système reçoit également une information d'identification d'un dispositif électronique destinée en particulier à n'importe lequel desdits dispositifs (40). Le système comprend aussi un ou plusieurs microprocesseurs électroniques numériques (24) programmés qui utilisent l'information d'identification pour des paramètres d'alimentation permettant d'acheminer de l'énergie de la source d'énergie au dispositif alimenté (40). Le système active sa propre capacité d'acheminement de l'énergie pour alimenter chaque dispositif (40) en fonction des paramètres d'alimentation sélectionnés par le microprocesseur (24). Un câble (36), qui peut être considéré dans certaines applications comme partie intégrante du système et dans d'autres applications comme une invention à part, relie le microprocesseur (24) et les moyens d'acheminement de l'énergie du système au dispositif alimenté (40). L'information d'identification est conservée soit dans le câble (en général, une mémoire ROM, PROM ou REPROM ou une autre puce mémoire (32)), soit dans l'un des connecteurs d'extrémités du câble (36), soit dans un dispositif (40) devant être alimenté, soit encore dans un adaptateur de courant placé à l'une ou l'autre extrémité du câble ou à l'intérieur du dispositif (40) devant être alimenté; le microprocesseur (24) du système lit l'information d'identification avant la fourniture d'énergie. Dans certaines formes d'exécution de l'invention, un adaptateur de courant reçoit du système du courant c.a. (10) et le transforme pour faire fonctionner le dispositif.
PCT/US1996/017662 1996-10-29 1996-10-29 Systeme ameliore de raccord d'alimentation electrique multivoltage pour dispositifs electroniques multiples, et dispositifs utilises avec ce systeme WO1998019223A1 (fr)

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PCT/US1996/017662 WO1998019223A1 (fr) 1996-10-29 1996-10-29 Systeme ameliore de raccord d'alimentation electrique multivoltage pour dispositifs electroniques multiples, et dispositifs utilises avec ce systeme
AU76684/96A AU7668496A (en) 1996-10-29 1996-10-29 Improved universal power-supply connection system for multiple electronic devices, and devices for use therewith

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WO2004004286A2 (fr) * 2002-06-29 2004-01-08 Inter-Continental Hotels Corporation Dispositif de telecommunications
EP1560311A1 (fr) * 2004-01-30 2005-08-03 Messier-Bugatti Installation de gestion de puissance dans un avion
FR2876843A1 (fr) * 2004-10-20 2006-04-21 Messier Bugatti Sa Reseau de distribution de puissance pour un vehicule
WO2008096340A2 (fr) * 2007-02-06 2008-08-14 D.S.P. Group Ltd. Système de gestion de puissance intégré de réveil/veille
EP1928063A3 (fr) * 2006-11-28 2009-03-11 Comarco Wireless Technologies, Inc. Embout démontable pour communiquer avec un adaptateur et un dispositif électronique
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US8923525B2 (en) 2013-02-06 2014-12-30 Zeikos Inc. Power transferring headphones
US9118240B2 (en) 2011-08-31 2015-08-25 Comarco Wireless Technologies, Inc. Power supply equipment providing multiple identification signals
US9153960B2 (en) 2004-01-15 2015-10-06 Comarco Wireless Technologies, Inc. Power supply equipment utilizing interchangeable tips to provide power and a data signal to electronic devices
US9271063B2 (en) 2013-02-06 2016-02-23 Zeikos Inc. Power transferring headphones
US9276539B2 (en) 2013-02-06 2016-03-01 Zeikos Inc. Power transferring headphones

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Cited By (33)

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Publication number Priority date Publication date Assignee Title
FR2823027A1 (fr) * 2001-03-30 2002-10-04 Labinal Installation de gestion de puissance dans un avion
US6921987B2 (en) 2001-03-30 2005-07-26 Labinal Power management installation in an aircraft
WO2004004286A2 (fr) * 2002-06-29 2004-01-08 Inter-Continental Hotels Corporation Dispositif de telecommunications
WO2004004286A3 (fr) * 2002-06-29 2004-08-19 Inter Continental Hotels Corp Dispositif de telecommunications
GB2406003A (en) * 2002-06-29 2005-03-16 Inter Continental Hotels Corp Telecommunications device
US7999412B2 (en) 2004-01-15 2011-08-16 Comarco Wireless Technologies, Inc. Detachable tip for communicating with adapter and electronic device
US9153960B2 (en) 2004-01-15 2015-10-06 Comarco Wireless Technologies, Inc. Power supply equipment utilizing interchangeable tips to provide power and a data signal to electronic devices
US11586233B2 (en) 2004-01-15 2023-02-21 Comarco Wireless Systems Llc Power supply systems
US9413187B2 (en) 2004-01-15 2016-08-09 Comarco Wireless Technologies, Inc. Power supply system providing power and analog data signal for use by portable electronic device to control battery charging
US9601922B2 (en) 2004-01-15 2017-03-21 Comarco Wireless Technologies, Inc. Power supply equipment utilizing interchangeable tips to provide power and a data signal to electronic devices
US10951042B2 (en) 2004-01-15 2021-03-16 Comarco Wireless Systems Llc Power supply systems
US10855086B2 (en) 2004-01-15 2020-12-01 Comarco Wireless Systems Llc Power supply equipment utilizing interchangeable tips to provide power and a data signal to electronic devices
US10855087B1 (en) 2004-01-15 2020-12-01 Comarco Wireless Systems Llc Power supply systems
US7868486B2 (en) 2004-01-15 2011-01-11 Comarco Wireless Technologies, Inc Power supply having source determination circuitry utilized to disable battery charging circuitry in powered device
US9806548B2 (en) 2004-01-15 2017-10-31 Comarco Wireless Technologies, Inc. Power supply system providing power and analog data signal for use by portable electronic device to control battery charging
US8492933B2 (en) 2004-01-15 2013-07-23 Comarco Wireless Technologies, Inc. Power supply equipment providing a data signal, identification information and power to an electronic device
US8330303B2 (en) 2004-01-15 2012-12-11 Comarco Wireless Technologies, Inc. Power supply equipment utilizing interchangeable tips to provide a data signal and power from an adapter to various electronic devices
US9647477B2 (en) 2004-01-15 2017-05-09 Comarco Wireless Technologies, Inc. Power supply equipment utilizing interchangeable tips to provide power and a data signal to electronic devices
FR2865864A1 (fr) * 2004-01-30 2005-08-05 Messier Bugatti Installation de gestion de puissance dans un avion.
US7286910B2 (en) 2004-01-30 2007-10-23 Precilec Installation for controlling power in an aircraft
EP1560311A1 (fr) * 2004-01-30 2005-08-03 Messier-Bugatti Installation de gestion de puissance dans un avion
EP1650846A1 (fr) * 2004-10-20 2006-04-26 Messier Bugatti Réseau de distribution de puissance pour un véhicule
FR2876843A1 (fr) * 2004-10-20 2006-04-21 Messier Bugatti Sa Reseau de distribution de puissance pour un vehicule
EP2385591A3 (fr) * 2006-11-28 2013-07-17 Comarco Wireless Technologies, Inc. Embout démontable pour communiquer avec un adaptateur et un dispositif électronique
EP1928063A3 (fr) * 2006-11-28 2009-03-11 Comarco Wireless Technologies, Inc. Embout démontable pour communiquer avec un adaptateur et un dispositif électronique
US7971086B2 (en) 2007-02-06 2011-06-28 D. S. P. Group Ltd. Integrated waking/while-awake power management system with breaking distance timer for high wake-up latency portion of hardware
WO2008096340A3 (fr) * 2007-02-06 2008-11-06 D S P Group Ltd Système de gestion de puissance intégré de réveil/veille
WO2008096340A2 (fr) * 2007-02-06 2008-08-14 D.S.P. Group Ltd. Système de gestion de puissance intégré de réveil/veille
US9118240B2 (en) 2011-08-31 2015-08-25 Comarco Wireless Technologies, Inc. Power supply equipment providing multiple identification signals
NL2011059A (en) * 2012-09-10 2014-03-12 Google Inc Apparatus and method for identifying a voltage and frequency to be supplied to a voltage.
US9271063B2 (en) 2013-02-06 2016-02-23 Zeikos Inc. Power transferring headphones
US9276539B2 (en) 2013-02-06 2016-03-01 Zeikos Inc. Power transferring headphones
US8923525B2 (en) 2013-02-06 2014-12-30 Zeikos Inc. Power transferring headphones

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