US20030104836A1 - Cellular radio telephone set - Google Patents

Cellular radio telephone set Download PDF

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Publication number
US20030104836A1
US20030104836A1 US10/287,853 US28785302A US2003104836A1 US 20030104836 A1 US20030104836 A1 US 20030104836A1 US 28785302 A US28785302 A US 28785302A US 2003104836 A1 US2003104836 A1 US 2003104836A1
Authority
US
United States
Prior art keywords
telephone set
usb
information processing
terminal apparatus
processing terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/287,853
Other languages
English (en)
Inventor
Masahito Shinohara
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Assigned to NEC CORPORATION reassignment NEC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SHINOHARA, MASAHITO
Publication of US20030104836A1 publication Critical patent/US20030104836A1/en
Priority to US11/128,093 priority Critical patent/US7206603B2/en
Abandoned legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0267—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to a cellular radio telephone set and, more particularly, to a cellular radio telephone set having a USB (Universal Serial Bus) peripheral circuit which realizes a USB connection function.
  • USB Universal Serial Bus
  • Cellular radio telephone sets are desired to have reduced size and weight for portability, and their internal batteries are also reduced in size and weight.
  • a small-size, light-weight internal battery means a short service life.
  • the cellular radio telephone must always be ON to ensure a long standby time because the user does not know when he/she may receive an incoming call. Therefore, the cellular radio telephone set must reduce its power consumption to prolong the standby time.
  • Recent cellular radio telephone sets are connected to information processing terminal apparatuses such as a personal computer (to be simply referred to as a PC hereinafter) and a PDA (Personal Digital Assistants), realizing information exchange with the information processing terminal apparatuses and mobile communication using the telephone network of the cellular radio telephone set.
  • information processing terminal apparatuses such as a personal computer (to be simply referred to as a PC hereinafter) and a PDA (Personal Digital Assistants), realizing information exchange with the information processing terminal apparatuses and mobile communication using the telephone network of the cellular radio telephone set.
  • the information processing terminal apparatus and cellular radio telephone set are connected using, e.g., a USB.
  • the cellular radio telephone set In the use of the USB, the cellular radio telephone set must be newly equipped with a USB peripheral circuit such as a USB device controller circuit. Power for operating the USB peripheral circuit is further required.
  • a suspend mode is generally prepared. Using the suspend mode can reduce the power consumption of the USB peripheral circuit when the cellular radio telephone set is not connected to the information processing terminal apparatus.
  • the present invention has been made in consideration of the above situation, and has as its object to provide a cellular radio telephone set having a USB connection function capable of minimizing the power consumption of the internal battery of the cellular radio telephone set both when the cellular radio telephone set is connected to an information processing terminal apparatus via a USB cable and when it is not connected to it.
  • a cellular radio telephone set having a USB peripheral circuit which realizes a USB connection function, wherein when the cellular radio telephone set is connected to an information processing terminal apparatus via a USB cable, a voltage Vbus supplied from the information processing terminal apparatus is regulated and supplied to the USB peripheral circuit, and when the cellular radio telephone set is not connected to the information processing terminal apparatus via the USB cable, an application CPU which controls the USB peripheral circuit is shifted to a sleep mode.
  • the sleep mode includes a low-power consumption operation mode.
  • whether the cellular radio telephone set is connected to the information processing terminal apparatus via the USB cable is determined by detecting presence/absence of the voltage Vbus supplied from the information processing terminal apparatus.
  • a cellular radio telephone set having a USB connection function comprising a USB connector which is connected to a USB cable connected to an information processing terminal apparatus including a personal computer, a USB device controller circuit for communicating with the information processing terminal apparatus via the USB connector connected to the USB cable, an application CPU which controls the whole USB, a control CPU which controls the whole cellular radio telephone set, a regulator circuit which converts a voltage Vbus supplied from the information processing terminal apparatus via the USB cable into a voltage for the USB device controller circuit, and a Vbus detection circuit which detects presence/absence of the voltage Vbus.
  • the USB device controller circuit comprises a D+ pull-up circuit which pulls up a signal D+ for data communication with the information processing terminal apparatus, a controller which controls the D+ pull-up circuit, and a transmission/reception circuit which performs transmission/reception of USB data communication.
  • the cellular radio telephone set having the USB connection function can minimize the power consumption of the internal battery of the cellular radio telephone set both when the cellular radio telephone set is connected to an information processing terminal apparatus via a USB cable and when it is not connected to it.
  • the present invention can reduce the power consumption of the internal battery in the standby state of the cellular radio telephone set and prolong the standby time.
  • FIG. 1 is a block diagram showing the power control arrangement of the USB peripheral circuit of a cellular radio telephone set according to an embodiment of the present invention.
  • FIG. 2 is a flow chart showing the operation of the cellular radio telephone set shown in FIG. 1.
  • a USB peripheral circuit in a cellular radio telephone set is operated by only power supplied from an information processing terminal apparatus such as a PC serving as a host, preventing the consumption of the internal battery of the cellular radio telephone set.
  • an information processing terminal apparatus such as a PC serving as a host
  • the application CPU is also shifted to a sleep mode, i.e., low-power consumption operation mode, reducing the power consumption of the internal battery of the cellular radio telephone set.
  • the present invention comprises a circuit which regulates a voltage Vbus supplied from the information processing terminal apparatus and supplies the regulated voltage to the USB peripheral circuit, and a circuit which detects Vbus.
  • Vbus is supplied to a USB device controller circuit to prevent the consumption of the internal battery of the cellular radio telephone set.
  • the application CPU is shifted to the low-power consumption operation mode to reduce the power consumption of the internal battery of the cellular radio telephone set.
  • FIG. 1 is a block diagram showing the power control arrangement of the USB peripheral circuit of the cellular radio telephone set according to the embodiment of the present invention.
  • the cellular radio telephone set of the embodiment comprises a USB connector 1 which is connected to a USB cable connected to an information processing terminal apparatus such as a PC, a USB device controller circuit 2 for communicating with the information processing terminal apparatus via the USB connector 1 connected to the USB cable, an application CPU 4 which controls the whole USB, a control CPU 5 which controls the entire cellular radio telephone set, a regulator circuit 6 which converts the voltage Vbus supplied from the information processing terminal apparatus via the USB cable into a voltage for the USB device controller circuit 2 , and a Vbus detection circuit 7 which detects the presence/absence of the voltage Vbus.
  • an information processing terminal apparatus such as a PC
  • a USB device controller circuit 2 for communicating with the information processing terminal apparatus via the USB connector 1 connected to the USB cable
  • an application CPU 4 which controls the whole USB
  • a control CPU 5 which controls the entire cellular radio telephone set
  • a regulator circuit 6 which converts the voltage Vbus supplied from the information processing terminal apparatus via the USB cable into a voltage for the USB device controller circuit 2
  • the USB device controller circuit 2 comprises a D+ pull-up circuit 3 which pulls up a signal D+ for data communication with the information processing terminal apparatus, a controller 8 which controls the D+ pull-up circuit 3 , and a transmission/reception circuit 9 which performs transmission/reception of USB data communication.
  • the cellular radio telephone set of the embodiment comprises the regulator circuit 6 which converts 5V Vbus into 3.3V and supplies 3.3V to the USB device controller circuit 2 . This can prevent the power consumption of the cellular radio telephone set.
  • the cellular radio telephone set of the embodiment further comprises the Vbus detection circuit 7 .
  • the control CPU 5 shifts the application CPU 4 to the sleep mode, thereby reducing the power consumption.
  • the control CPU 5 wakes up the application CPU 4 .
  • the USB device controller circuit 2 is so controlled as to pull up D+. A sequence of communicating with the information processing terminal apparatus such as a PC is realized.
  • the regulator circuit 6 converts 5V Vbus supplied via the USB connector 1 into 3.3V, and supplies this regulated voltage (3.3V) to the USB device controller circuit 2 .
  • the USB device controller circuit 2 incorporates the pull-up circuit 3 which pulls up D+ under the control of the controller 8 .
  • the cellular radio telephone set comprises the Vbus detection circuit 7 .
  • a Vbus detection signal from the Vbus detection circuit 7 is sent to the control CPU 5 .
  • the control CPU 5 shifts the application CPU 4 to the sleep mode or wakes it up on the basis of the Vbus detection signal.
  • Vbus is converted into 3.3 V by the regulator circuit 6 and then supplied to the USB device controller circuit 2 .
  • the Vbus detection circuit 7 detects Vbus, and a Vbus detection signal is recognized by the control CPU 5 .
  • Vbus detection circuit 7 detects Vbus (connection to the host). At the same time, power is supplied to the USB device controller circuit 2 (A- 2 ).
  • the control CPU 5 wakes up the application CPU 4 on the basis of a Vbus detection signal from the Vbus detection circuit 7 ((A- 3 ) and (A- 4 )). After the end of activation, the application CPU 4 initializes the USB device controller circuit 2 (A- 5 ).
  • the controller 8 and D+ pull-up circuit 3 of the USB device controller circuit 2 pull up D+(A- 6 ). In response to D+ pull-up operation, USB communication starts (A- 7 ).

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)
US10/287,853 2001-11-21 2002-11-01 Cellular radio telephone set Abandoned US20030104836A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/128,093 US7206603B2 (en) 2001-11-21 2005-05-11 Cellular radio telephone set

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP355498/2001 2001-11-21
JP2001355498A JP2003158561A (ja) 2001-11-21 2001-11-21 携帯電話機

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/128,093 Division US7206603B2 (en) 2001-11-21 2005-05-11 Cellular radio telephone set

Publications (1)

Publication Number Publication Date
US20030104836A1 true US20030104836A1 (en) 2003-06-05

Family

ID=19167189

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/287,853 Abandoned US20030104836A1 (en) 2001-11-21 2002-11-01 Cellular radio telephone set
US11/128,093 Expired - Lifetime US7206603B2 (en) 2001-11-21 2005-05-11 Cellular radio telephone set

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/128,093 Expired - Lifetime US7206603B2 (en) 2001-11-21 2005-05-11 Cellular radio telephone set

Country Status (4)

Country Link
US (2) US20030104836A1 (ja)
JP (1) JP2003158561A (ja)
CN (1) CN100337462C (ja)
GB (2) GB2384948B (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060052072A1 (en) * 2004-09-09 2006-03-09 Hess David M Electronic apparatus and system with multi-purpose interface
US20070140199A1 (en) * 2002-02-25 2007-06-21 Palm, Inc. Power saving in multi-processor device
US20090023416A1 (en) * 2007-07-20 2009-01-22 Haber George T Mobile Radio Receiver Power Management Systems and Methods
US20120178460A1 (en) * 2004-12-20 2012-07-12 Allan David Lewis Bypass routing to a mobile device
US20120203937A1 (en) * 2009-09-25 2012-08-09 Soumendra Mohanty Transfer of Uncompressed Multimedia Contents or Data Communications

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WO2005025195A1 (ja) * 2003-08-27 2005-03-17 Fujitsu Limited 携帯端末装置及びその制御方法
CN100337501C (zh) * 2004-04-21 2007-09-12 华为技术有限公司 一种usb接口防护系统
KR100619898B1 (ko) * 2004-08-24 2006-09-19 엘지전자 주식회사 외부장치 감지 기능을 갖는 이동통신 단말기 및 그 방법
US7408887B2 (en) * 2004-10-27 2008-08-05 Intel Corporation Methods and apparatus for operating a wireless electronic device based on usage pattern
US7711039B2 (en) * 2005-04-01 2010-05-04 Freescale Semiconductor, Inc. System and method for protecting low voltage transceiver
KR100630123B1 (ko) 2005-08-31 2006-09-28 삼성전자주식회사 디지털 멀티미디어 방송 데이터를 수신 및 재생하기 위한이동 단말기 액세서리 장치 및 방법
KR100897419B1 (ko) * 2007-09-20 2009-05-25 주식회사 스타칩 주장치의 동작모드 전환장치 및 그 방법
US8442586B2 (en) * 2008-05-08 2013-05-14 Texas Instruments Incorporated Determining USB/ISO interface and power supply voltage in mobile device
TWI386019B (zh) * 2008-09-04 2013-02-11 Inventec Appliances Corp 手持裝置與插卡式無線通訊模組之間的相互喚醒系統及其方法
KR101578728B1 (ko) * 2009-05-22 2015-12-21 엘지전자 주식회사 휴대 단말기
CN102087639B (zh) * 2010-11-30 2015-05-20 中兴通讯股份有限公司 一种启动usb状态机的方法及终端

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US6647452B1 (en) * 1999-09-02 2003-11-11 Alps Electric Co., Ltd. Automatic recovery of non-responsive peripheral device by apparent disconnect and reconnect
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US20010034807A1 (en) * 2000-04-25 2001-10-25 Kabushiki Kaisha Mobile communication terminal device

Cited By (12)

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Publication number Priority date Publication date Assignee Title
US20070140199A1 (en) * 2002-02-25 2007-06-21 Palm, Inc. Power saving in multi-processor device
US7898994B2 (en) * 2002-02-25 2011-03-01 Hewlett-Packard Development Company, L.P. Power saving in multi-processor device
US20060052072A1 (en) * 2004-09-09 2006-03-09 Hess David M Electronic apparatus and system with multi-purpose interface
US7184794B2 (en) * 2004-09-09 2007-02-27 Motorola, Inc. Electronic apparatus and system with multi-purpose interface
US20120178460A1 (en) * 2004-12-20 2012-07-12 Allan David Lewis Bypass routing to a mobile device
US20090023416A1 (en) * 2007-07-20 2009-01-22 Haber George T Mobile Radio Receiver Power Management Systems and Methods
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US20120203937A1 (en) * 2009-09-25 2012-08-09 Soumendra Mohanty Transfer of Uncompressed Multimedia Contents or Data Communications
US8806094B2 (en) * 2009-09-25 2014-08-12 Analogix Semiconductor, Inc. Transfer of uncompressed multimedia contents or data communications
US9280506B1 (en) 2009-09-25 2016-03-08 Analogix Semiconductor, Inc. Transfer of uncompressed multimedia contents or data communications

Also Published As

Publication number Publication date
GB0502270D0 (en) 2005-03-09
GB2384948A (en) 2003-08-06
GB2384948B (en) 2006-03-22
JP2003158561A (ja) 2003-05-30
US20050208963A1 (en) 2005-09-22
GB0227212D0 (en) 2002-12-24
CN100337462C (zh) 2007-09-12
CN1420671A (zh) 2003-05-28
US7206603B2 (en) 2007-04-17

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Legal Events

Date Code Title Description
AS Assignment

Owner name: NEC CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SHINOHARA, MASAHITO;REEL/FRAME:013470/0343

Effective date: 20021029

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION