WO2000007345A1 - Commutation de signaux analogiques dans des dispositifs de calcul mobiles - Google Patents

Commutation de signaux analogiques dans des dispositifs de calcul mobiles Download PDF

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Publication number
WO2000007345A1
WO2000007345A1 PCT/US1998/015880 US9815880W WO0007345A1 WO 2000007345 A1 WO2000007345 A1 WO 2000007345A1 US 9815880 W US9815880 W US 9815880W WO 0007345 A1 WO0007345 A1 WO 0007345A1
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WO
WIPO (PCT)
Prior art keywords
communications
analog
user
digital data
portable
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.)
Ceased
Application number
PCT/US1998/015880
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English (en)
Inventor
Carlos E. Vidales
Billy G. Moon
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.)
Ericsson Inc
Original Assignee
Ericsson Inc
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 Ericsson Inc filed Critical Ericsson Inc
Priority to PCT/US1998/015880 priority Critical patent/WO2000007345A1/fr
Priority to AU86751/98A priority patent/AU8675198A/en
Publication of WO2000007345A1 publication Critical patent/WO2000007345A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
    • H04M1/72412—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories using two-way short-range wireless interfaces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/253—Telephone sets using digital voice transmission
    • H04M1/2535—Telephone sets using digital voice transmission adapted for voice communication over an Internet Protocol [IP] network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/7243—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages

Definitions

  • This invention relates to portable intelligent communication devices, whether these devices are for voice communications or data communications (such as smart phone, computers, personal data assistants (PDAs), etc.).
  • the invention specifically relates to an apparatus and method for dynamically connecting a variety of sources and sinks ("source/sinks") of analog signals, such as speaker phones, headsets, modems, wireless cellular telephone links, data links and telephone land lines.
  • source/sinks of analog and digital signals may reside entirely within the portable communication device or be connected to other portable device via wireless or wired connections.
  • Full-featured smart phones and personal digital assistants may include a variety of sources and sinks of analog and digital signals, such as two or more sets of audio speakers and microphones, cellular and land-line telephone modules, modems, and other devices.
  • Some of the sources and sinks of signals are user interface devices, such as keyboards, LCD displays, analog speakers and microphones, and other types of user interface devices.
  • Other sources and sinks of signals are communication devices such as cellular and land line communications modules, modems, personal computer memory card industry association standard (PCMCIA) devices and other such devices.
  • PCMCIA personal computer memory card industry association standard
  • the smart phone or personal digital assistant When a user desires to make a call, the smart phone or personal digital assistant must make a connection between a pair (or more) of the sources and sinks of signals to establish a communication pathway between the user interface device, e.g., microphone and speaker in a telephone handset, and a communication device, e.g., a cellular telephone module.
  • a pair (or more) of the sources and sinks of signals to establish a communication pathway between the user interface device, e.g., microphone and speaker in a telephone handset, and a communication device, e.g., a cellular telephone module.
  • the smart phone or personal digital assistant must dynamically connect the sources and sinks of signals depending on which user interfaces and communication devices are active. As each communication session is initiated, the smart phone or personal digital assistant must establish a communication path between the selected user interface and communication modules. For example, if a user desires to place a cellular telephone call during which a group of individuals will listen and speak, the smart phone or personal digital assistant must connect an analog speaker phone device to a cellular telephone communication module. After a communication session is terminated, the smart phone or personal digital assistant may disconnect the selected user interface and communications module in order to be prepared for the next communication session.
  • An innovation of the current smart phone or personal digital assistant system is to route analog signals between sources/sinks (i.e., user interfaces and communication links) without converting the analog signals to digital form.
  • Digital signals may be routed through the system in a manner similar to that used for analog signals, routed by and through a processor, or routed by some other technique conventionally employed for digital signals.
  • most systems were not adapted to dynamically interconnect sources and sinks of analog signals, or, if they did, required manually configured switches and/or ports to inter- connected analog signals.
  • Systems that did process both analog and digital signals have typically converted all signals to a digital format and then processed the digitized signals. For example, an analog signal would be received by the portable computer device from a telephone communication module, converted to a digital form, processed by and routed through the portable device, and then converted back to analog form as the signal is fed to, for example, an analog speaker.
  • a feature of the present system is that analog signals are maintained as analog signals as they are routed from a source, e.g., a microphone, through a smart phone or personal digital assistant to a sink, e.g., a telephone land line connection.
  • a source e.g., a microphone
  • sink e.g., a telephone land line connection
  • sources and sinks of analog signals in the present system are communications links or user interfaces.
  • a "communications link” is a wireless phone, a land-line phone, or any other device used to transceive analog electrical signals.
  • the analog electrical signals received and transmitted in an analog communication link typically represent sound waves in the audible range or data.
  • a "user interface” for analog signals is, for example, a set of transducers used to convert sound into electrical signals and vice versa, such as a microphone/speaker pair in a hand set, or in a speaker phone.
  • Smart phones and personal digital assistant may also include as "user interface” devices modems which encode and transmit data through channels optimized to carry transceive data in analog form over communications channels designed for transmission of sound in the audio frequency range, e.g., land-line telephone circuits.
  • Digital user interface devices include displays, keyboards and keypads.
  • the present system incorporates an analog matrix switch for routing analog signals between sources and sinks in a portable communications device.
  • An analog matrix switch is provided within the portable device to allow an intelligent controller (such as a microprocessor ( ⁇ P)) and its software the ability to connect and/or disconnect the different sources/sink of analog signals in response to operator commands and/or preset conditions.
  • ⁇ P microprocessor
  • Previously, such analog matrix switches were used in non-portable, infra- structure category of equipment, such as private branch telephone exchanges (PBXs) and central office switching equipment.
  • PBXs private branch telephone exchanges
  • an electronic device embodying the present system may receive and transmit signals carrying voice and/or data information over a selected one (or more) of the communications links, e.g., cellular or land-line, and route the signals to the appropriate headset, handset, speaker phone, modem or other signal source/sink.
  • the communications links e.g., cellular or land-line
  • the dynamic connections between the communication links and analog user interfaces are set up by an analog matrix switch operating under control of a processor.
  • the analog matrix switch establishes the connection between the communication links and analog user interfaces for each communication session. For example, a user may wish to make a conference call through the speaker phone and one of the cellular phone modules.
  • the processor controls the analog matrix to establish a connection between the speaker phone and a cellular phone module.
  • the switch may continue the connection or break the connection.
  • Other simultaneous communication sessions between other modules may be carried by the portable communication device embodying the invention.
  • the matrix switch is non-blocking, other sessions with analog signals can be established concurrently with a first session. For example, if the user has established a call using the speaker phone and wishes to place another private call at the same time, the idle handset and a PCMCIA cellular phone module can be enabled and connected to allow the user to place a second concurrent communication session independently and separately from the first session.
  • FIGURE 1 is an exemplary drawing of a personal digital assistant
  • FIGURE 2 is a high level schematic diagram showing the user interfaces and communication links provided by the personal digital assistant shown in FIG. I;
  • FIGURE 3 is a detailed schematic diagram of an exemplary circuit for use in the personal digital assistant shown in FIG. 1.
  • FIG. 1 shows a portable personal digital assistant device 100 (the invention may also be embodied in a smart phone or other portable communication device) that includes an interactive touch screen display 102, a cordless telephone handset 104 with a microphone and a speaker, a built-in cellular phone and antenna 105 for cellular telephone communications, and a built-in speaker 140 and microphone 142 which together are used for conference calls.
  • the personal digital assistant may include accessory jacks 106, 108 for connecting to, for example, a screen image projector 1 10, a headset (speaker and microphone) device 112, a printer (not shown) and other electronic devices.
  • the personal digital assistant may include an infrared sensor and transmitter 114 to establish an infrared connection with, for example, a keyboard 116, a mouse or trackball 118, or other digital user interface device.
  • the personal digital assistant 100 may include a PCMCIA (personal computer memory card industry association) standard interface 120 that enables the personal digital assistant to accept modem, LAN and other PCMCIA cards 124.
  • the personal digital assistant may be designed such that all or most of the connections to other devices and communi- cations systems are conducted with wireless connections, such as via radio frequency (RF) and infrared (IR) paths. For example, all of the external connections to peripheral devices and communications systems may be implemented using wireless connections to provide for a truly portable device 100.
  • RF radio frequency
  • IR infrared
  • the personal digital assistant 100 is also capable of establishing voice communication links via its cellular telephone module and antenna 105 or antennae, and via a land-line to a public switching telephone network (PSTN) 122.
  • PSTN public switching telephone network
  • the personal digital assistant provides data links to computer devices, such as to a personal or laptop computer 126 coupled through an accessory port 106 in the device 100 or through a modem 124 installed into the PCMCIA slot 120 of the personal digital assistant 100.
  • the personal digital assistant may establish a cellular telephone or land-line telephone connection to a digital storage device 128, which provides e-mail and voice mail digital data storage, or other data access.
  • the digital voice mail data held in digital storage 128 and transferred over a telephone is converted by the personal digital assistant 100 with a codec (coder/decoder) from a digital signal retrieved from the storage device to an analog voice signal by the personal digital assistant.
  • the personal digital assistant may be operated as an intelligent telephone.
  • the function key icons 130 displayed on the touch screen 102 may be used to dial a telephone number that when entered causes to be established a wireless cellular communication link (or a land-line link) between the personal digital assistant 100 and the telephone system that is being dialed.
  • the entered number may be presented on a window 132 of the display so that the personal digital assistant user may confirm that the telephone number actually dialed is the telephone number intended to be dialed.
  • the user initiates a call by pressing an appropriate functional button icon, e.g., "send", 134 on the display 120, that causes the personal digital assistant to send the dialed number via a cellular communication module (represented by antenna 105) or a land-line connection 122 to establish a communication link.
  • a cellular communication module represented by antenna 105
  • a land-line connection 122 to establish a communication link.
  • the user may speak into the handset 104 microphone and listen on the handset speaker of the personal digital assistant, or use the personal digital assistant as a speaker phone using built-in speaker 140 and microphone 142.
  • the general schematic diagram of the user interfaces and communication links for the personal digital assistant in FIG. 2 shows the operational and functional aspects of the personal digital assistant with respect to the communications links, and user interface components.
  • the personal digital assistant can functionally be divided into user and machine interface components 202 and communication link components 204 as shown in FIG. 2.
  • the user interfaces may be incorporated in the personal digital assistant device, or external to the device and coupled by a wire or wireless connection to the device.
  • the interface functional units provide connections to the user and machine interface devices, and may include analog devices such as a handset 104, speaker phone 140, 142, analog modem 206 and codec 208 (where the codec converts analog signals to digital signals).
  • the analog modem 206 may be a conventional four-wire or two-wire interface to a land-line PSTN connection that provides an analog signal output that comprises a carrier frequency modulated with digital data signal, such as from a personal computer 126.
  • a codec 208 may convert a digital signal from an external or internal digital storage device 209, e.g., CDROM drive (external) or flash memory (internal), into an analog signal such as audible sound signals.
  • the communication links 204 of the personal digital assistant 100 represent the components that provide communications, such as cellular transceiving modules 210, 21 1, telephone land-line connections 122, and other similar communication connections.
  • the personal digital assistant may have wireless cellular transceivers 210 and 21 1 to provide multiple cellular telephone communication links which may be used simultaneously for voice or computer modem communications.
  • a personal digital assistant user may also simultane- ously maintain two cellular communication links to both transfer digital computer data and speak telephonically to a user who is simultaneously talking and reviewing data on his computer or personal digital assistant via modem.
  • the personal digital assistant may be coupled to a land-line phone connections 122, such as a PSTN or PBX, when such land-line phone connections are available.
  • a land-line phone By accessing a land-line phone, the personal digital assistant may support an alternative communication link which could offer a higher rate of service than cellular connections.
  • the communication links of the personal digital assistant may also include connections to other codecs 214 that are connected to, for example, telephones which accept digitized voice signals or digital storage devices, such as some PCMCIA cards.
  • an external cellular telephone may be coupled to the personal digital assistant via a codec 214 and the IR port 114 to access a cellular phone link or a land-line phone link.
  • the interfaces and communication links shown in FIG. 2 of the personal digital assistant 100 are conventional interfaces and/or links.
  • the interfaces may be incorporated in the body of the device to provide a compact and convenient digital and analog portable communication and computing device.
  • personal digital assistant may be coupled to peripheral user interfaces and/or communications modules, such as key boards, digital presentation projectors, fax/modems and other devices.
  • the connections between the digital assistant and peripheral devices may be by conventional wire connections or conventional wireless connections. While wireless and wired connections to peripheral devices are well known to persons of ordinary skill in this art, a novel wireless RF or IR connection may be employed to connect the personal digital assistant to a telephone jack wall socket. This wireless connection is described in more detail in connection with FIG. 3.
  • the personal digital assistant 100 provides connections between the user interfaces and communication links in a flexible manner that allows the various signal sinks and sources to be dynamically coupled to the various available communication links.
  • the personal digital assistant 100 allows either the handset speaker and microphone 104 or an internal microphone 142 and speaker 140. or a headset 112 to be coupled to either cellular phone module 210, 21 1 or to land-line phone link 122 depending on the particular circumstances of each individual communication.
  • the user may select whether a cellular telephone link is to be established or whether a land-line phone connection is to be made.
  • the user may select whether to use an internal microphone 142 and speaker 140 in the personal digital assistant, a user headset 112, or a handset 104.
  • the user may connect a personal computer 126 directly to a bus port in the device 100, and provide a communication path for the computer through the device via one of the available cellular phone links, 210, 211, the land-line phone 122, or to other computers 126 by modems 124a.
  • an incoming call may come in via one of the cellular phone links or a land-line phone link to the personal digital assistant 100.
  • the personal digital assistant 100 may connect the communication link to an e-mail or voice mail digital storage device 209 via a codec 208. Accordingly, the present invention provides dynamic interconnection of various signal sources and sinks to the various available communication links or pathways.
  • a device 400 embodying the invention may include an analog matrix switch 402 interconnects a variety of analog signal sources and sinks, such as a wireless speaker/microphone telephone handset 404, a modem 406, a cellular telephone transceiver module 408, a speaker 412 and microphone 414 (e.g., a speaker phone), and a wireless communications module 415 for PSTN land-line connections.
  • analog signal sources and sinks such as a wireless speaker/microphone telephone handset 404, a modem 406, a cellular telephone transceiver module 408, a speaker 412 and microphone 414 (e.g., a speaker phone), and a wireless communications module 415 for PSTN land-line connections.
  • analog signal sources and sinks such as a wireless speaker/microphone telephone handset 404, a modem 406, a cellular telephone transceiver module 408, a speaker 412 and microphone 414 (e.g., a speaker phone), and a wireless communications module 415 for PSTN land-line connections.
  • suitable analog matrix switches 402 may be an MT8809 8 X 8 Analog Switch Array or MSAN- 101 8 X 4 Analog Switch Array devices that are sold by Mitel ® of Ontario, Canada.
  • the connections to the analog matrix switch in FIG. 3 are shown by way of example. In practice, the arrangement of connections between user interfaces and communication links will depend on the component layout of the portable digital data device, and the printed circuit board included in the device on which the switch and other electronic components are mounted.
  • a microcontroller (such as a Motorola microprocessor Power PC 821) 416 controls the routing of signals through the analog matrix switch 402.
  • the processor executes software program instructions that are stored in a non- volatile memory, e.g., a Flash EPROM 418, for user programs and data or a ROM 420 for system operating programs.
  • the programs in conjunction with entries made by the user cause the processor to send control signals to the analog matrix switch 402.
  • the switch Upon receipt of these control signals, the switch establishes connections between selected analog signal sinks and switches.
  • the microcontroller processor 416 controls the analog matrix switch 402 using settings that indicate the switch routings to be used for various types of communications. These settings may be manually entered by the user in initially setting up the digital data communication device 400, or may be established at the manufacturing facility or a service center. These settings for the connection routings through the switch 402 are stored in memory 418, 420 in a location allocated for switch settings. For example, during an initial set-up sequence for the digital data device, the user may be presented with a series of selections on a touch screen display 422, such as "Select Default Speaker / Microphone as one of Headset, Speakerphone or Handset", in response to which the user enters a selection on the display to be stored in a map of switch connections in memory.
  • incoming telephone calls will be automatically routed to the speakerphone because the processor will send an appropriate command to establish this routing to the analog matrix switch.
  • Other types of signal routing that the processor will command may include that audio is routed to the handset 404 when the handset is removed from its carriage, or that a second cellular telephone module (not shown) is to be used only if the first cellular module 408 is already in use.
  • the user may override the preselected switch settings stored in memory by entering appropriate commands via the touch screen 462 or a keyboard 424 to, for example, switch on a speaker phone during an ongoing communication session.
  • the dynamic routing ability of the analog matrix switch provides great flexibility to the user and microcontroller to route analog signals between user interfaces and communications links.
  • a personal digital assistant embodying the present invention makes manual connections (plugging / unplugging) unnecessary to configure the arrangement of analog sources and sinks.
  • the source / sink devices are electrically and possibly permanently attached to the analog matrix switch, where they become available for connection to any other device without the need to physically reconfigure the connection for every session.
  • the personal digital assistant allows for automation of connections through a suitable user interface, such as keys and a display.
  • the processor which monitors the different sink/source device connected to the matrix switch may be programmed, for example, to route all PSTN calls to the modem. Or, if an incoming call is detected, the processor may signal (“rings") the operator through a built-in speaker, and automatically route the call through to the handset when it detects that the operator has picked up the handset. Calls may also be routed to the speaker phone, or voice mail (digital storage) by simply pressing a button on the personal digital assistant.
  • the device 400 shown in FIG. 3 supports full and half-duplex communications.
  • the matrix switch may be bi- directionally connected with full-duplex, twin paths to the cordless handset 404, the analog modem 406, the PSTN land-line telephone connection 415, the cellular telephone transceiver module 408, an echo canceller 426 associated with the speaker 412 and microphone 414, and to an external system connector 428 that is connectable to peripheral devices, controlled by serial ports to the processor 416.
  • the matrix switch 402 may have half-duplex or full-duplex connections to a codec 430 associated with a serial I/O port 432 of the processor, and a speaker signal input 434 from a PCMCIA controller 436 in the processor.
  • the personal digital assistant 400 may include a liquid crystal display (LCD) 422 connected by a bus 464 to an LCD controller 468 in the processor 416.
  • the LCD may include a touchscreen 462 that has an associated touchscreen controller / digitizer 470 to detect the location of a user's fingers or stylus touching the screen.
  • the microcontroller 416 has three primary buses, which are data bus 436, address bus 438, and control bus 440.
  • the memory accessible by the processor may include the ROM 420 and reprogrammable Flash EPROM 418, and a temporary storage RAM or DRAM 442. Each of these memories is controlled by the microcontroller 416 and accessible to the microcontroller via the address and data buses.
  • digital control and digital data communications are provided via the buses and processor between the user interface devices and the communications devices.
  • the modem 406, PCMCIA interface 448, handset 404, and telephone PSTN land line interface 415 are connected to one or more of the data, address and control buses.
  • the keyboard 424 and a power supply module 456 may be also coupled to the buses.
  • a keyboard and power controller 452 controls and monitors the power supply 456, turns on and off status LEDs 471 to indicate the status of, for example, the power supply.
  • the keyboard and power controller module e.g., a slave controller 452, controls an IR port 472 that provides infrared (IR) communication with a wireless key board 424.
  • IR infrared
  • Other wireless IR peripheral devices may communicate with the personal digital assistant via an IRDA port 454.
  • a novel wireless PSTN interface module 415 may include a telephone wire jack attachment 458 that includes a conventional subscriber line interface connection (SLIC) to the PSTN telephone land line, a CODEC to digitize the analog line signal, a processor and memory to control the jack attachment, and a baseband chip and RF processor to generate an RF signal to carry and receive the digitized telephone line signals.
  • an RF transceiver attachment 457 attached to the personal digital assistant 400 may include an RF processor and baseband chip to receive and transmit the wireless RF signals from the jack attachment, a CODEC to convert the digitized RF signal to an analog signal that is routed to the analog matrix switch, and a system interface to the buses of the processor.
  • the entire RF system may, however, be replaced by an IR system not described here.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Human Computer Interaction (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Cette invention concerne un dispositif de communication électronique numérique et portable qui comprend un commutateur de matrice analogique permettant de router dynamiquement des signaux analogiques entre des interfaces d'utilisateurs et des liaisons de communication. Ces interfaces d'utilisateurs comprennent divers microphones, haut-parleurs, modems ou autres interfaces d'utilisateurs. Les liaisons de communication peuvent comprendre de multiples modules téléphoniques tels que des émetteurs-récepteurs cellulaires, des connexions téléphoniques par lignes terrestres ou d'autres connexions à des dispositifs de communication. Un processeur prévu dans le dispositif de communication va émettre des instructions vers le commutateur de matrice analogique de manière à établir le routage de signaux analogiques voulu entre les interfaces d'utilisateurs et les liaisons de communication.
PCT/US1998/015880 1998-07-28 1998-07-28 Commutation de signaux analogiques dans des dispositifs de calcul mobiles Ceased WO2000007345A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/US1998/015880 WO2000007345A1 (fr) 1998-07-28 1998-07-28 Commutation de signaux analogiques dans des dispositifs de calcul mobiles
AU86751/98A AU8675198A (en) 1998-07-28 1998-07-28 Switching of analog signals in mobile computing devices

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Application Number Priority Date Filing Date Title
PCT/US1998/015880 WO2000007345A1 (fr) 1998-07-28 1998-07-28 Commutation de signaux analogiques dans des dispositifs de calcul mobiles

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010083829A1 (fr) * 2009-01-20 2010-07-29 Gn Netcom A/S Base de micro-casque avec affichage
EP2215810A4 (fr) * 2007-11-27 2012-01-25 Avaya Inc Téléphone destiné à des audioconférences
WO2013087099A1 (fr) * 2011-12-14 2013-06-20 Gn Netcom A/S Base de combiné munie d'un support destinée à un dispositif de communication mobile
US9143590B2 (en) 2009-01-20 2015-09-22 Gn Netcom A/S Headset base with display and communications base
WO2016112303A1 (fr) * 2015-01-08 2016-07-14 Telegenix, Inc. Dispositif portable de commutation numérique de communication vocale pour systèmes de communication
CN106066614A (zh) * 2016-07-12 2016-11-02 上海健康医学院 一种电路系统选择的数字化设置方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990003076A1 (fr) * 1988-09-01 1990-03-22 Intelligence Technology Corporation Procede et appareil de commande de transmission de signaux de voix et de donnees
WO1994029968A1 (fr) * 1993-06-08 1994-12-22 Mitsui Comtek Corporation Carte cellulaire pcmcia adaptable a un ordinateur portable ou a un combine telephonique cellulaire
WO1995014275A1 (fr) * 1993-11-15 1995-05-26 Ete, Inc. Appareil portatif pour communications multimedia integrees
GB2289555A (en) * 1994-05-19 1995-11-22 Nokia Mobile Phones Ltd Device for personal communications, data collection and data processing and a circuit card

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990003076A1 (fr) * 1988-09-01 1990-03-22 Intelligence Technology Corporation Procede et appareil de commande de transmission de signaux de voix et de donnees
WO1994029968A1 (fr) * 1993-06-08 1994-12-22 Mitsui Comtek Corporation Carte cellulaire pcmcia adaptable a un ordinateur portable ou a un combine telephonique cellulaire
WO1995014275A1 (fr) * 1993-11-15 1995-05-26 Ete, Inc. Appareil portatif pour communications multimedia integrees
GB2289555A (en) * 1994-05-19 1995-11-22 Nokia Mobile Phones Ltd Device for personal communications, data collection and data processing and a circuit card

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2215810A4 (fr) * 2007-11-27 2012-01-25 Avaya Inc Téléphone destiné à des audioconférences
WO2010083829A1 (fr) * 2009-01-20 2010-07-29 Gn Netcom A/S Base de micro-casque avec affichage
US9143590B2 (en) 2009-01-20 2015-09-22 Gn Netcom A/S Headset base with display and communications base
CN102282830B (zh) * 2009-01-20 2016-04-27 Gn奈康有限公司 带有显示器的耳机底座
WO2013087099A1 (fr) * 2011-12-14 2013-06-20 Gn Netcom A/S Base de combiné munie d'un support destinée à un dispositif de communication mobile
US9300777B2 (en) 2011-12-14 2016-03-29 Gn Netcom A/S Headset base with holder for mobile communication device
WO2016112303A1 (fr) * 2015-01-08 2016-07-14 Telegenix, Inc. Dispositif portable de commutation numérique de communication vocale pour systèmes de communication
US9819804B2 (en) 2015-01-08 2017-11-14 Telegenix, Inc. Portable voice communications digital switching device for communications systems
CN106066614A (zh) * 2016-07-12 2016-11-02 上海健康医学院 一种电路系统选择的数字化设置方法

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