[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

ATE372611T1 - Verfahren und anordnung zur einstellung der sendeleistung eines mobilübertragungsgerät - Google Patents

Verfahren und anordnung zur einstellung der sendeleistung eines mobilübertragungsgerät

Info

Publication number
ATE372611T1
ATE372611T1 AT04731440T AT04731440T ATE372611T1 AT E372611 T1 ATE372611 T1 AT E372611T1 AT 04731440 T AT04731440 T AT 04731440T AT 04731440 T AT04731440 T AT 04731440T AT E372611 T1 ATE372611 T1 AT E372611T1
Authority
AT
Austria
Prior art keywords
transmitted power
adjusting
arrangement
transmission device
transmit power
Prior art date
Application number
AT04731440T
Other languages
English (en)
Inventor
Gerhard Runze
Ralf Burdenski
Hans Kalveram
Original Assignee
Nxp Bv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33427210&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE372611(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nxp Bv filed Critical Nxp Bv
Application granted granted Critical
Publication of ATE372611T1 publication Critical patent/ATE372611T1/de

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/52TPC using AGC [Automatic Gain Control] circuits or amplifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/06TPC algorithms
    • H04W52/08Closed loop power control

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Control Of Amplification And Gain Control (AREA)
AT04731440T 2003-05-09 2004-05-06 Verfahren und anordnung zur einstellung der sendeleistung eines mobilübertragungsgerät ATE372611T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03101299 2003-05-09

Publications (1)

Publication Number Publication Date
ATE372611T1 true ATE372611T1 (de) 2007-09-15

Family

ID=33427210

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04731440T ATE372611T1 (de) 2003-05-09 2004-05-06 Verfahren und anordnung zur einstellung der sendeleistung eines mobilübertragungsgerät

Country Status (7)

Country Link
US (1) US7809393B2 (de)
EP (1) EP1625675B1 (de)
JP (1) JP2006526916A (de)
CN (1) CN1784837B (de)
AT (1) ATE372611T1 (de)
DE (1) DE602004008769T2 (de)
WO (1) WO2004100396A1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008020383A2 (en) * 2006-08-14 2008-02-21 Nxp B.V. Equalizer system for emitting a quas i -constant power output rf signal in a frequency band
CN1964213B (zh) * 2006-12-13 2011-11-23 北京中星微电子有限公司 一种提高射频功率放大器线性度的方法、系统和基带装置
WO2008084850A1 (ja) * 2007-01-12 2008-07-17 Panasonic Corporation ポーラ変調送信装置及び送信パワー制御方法
CN101578763B (zh) * 2007-01-12 2012-01-04 松下电器产业株式会社 发送功率控制方法和发送装置
US8126452B2 (en) 2007-11-29 2012-02-28 Intel Mobile Communications GmbH Systems and methods for self-calibrating transceivers
FR2924544B1 (fr) * 2007-12-03 2011-04-22 Wavecom Procede de calibrage d'une chaine de transmission, produit programme d'ordinateur, moyen de stockage et dispositif de calibrage correspondants.
JP5643785B2 (ja) * 2012-06-15 2014-12-17 株式会社東芝 デジタル放送送信装置およびエキサイタ
US8836424B2 (en) * 2012-07-16 2014-09-16 Intel Mobile Communications GmbH Amplifier circuit, method and mobile communication device
US9059877B2 (en) * 2013-05-31 2015-06-16 Qualcomm Incorporated Dynamic gain for DAC illumination control
TWI551170B (zh) * 2013-08-07 2016-09-21 瑞昱半導體股份有限公司 具有功率校正功能之通訊裝置與方法
US9325372B2 (en) * 2013-08-12 2016-04-26 Broadcom Corporation Upstream power amplifier
CN104378168B (zh) * 2013-08-13 2017-04-12 瑞昱半导体股份有限公司 具有功率校正功能的通信装置与方法
US10020596B2 (en) * 2015-04-30 2018-07-10 Ntt Docomo, Inc. Radio base station
DE102016108206B4 (de) * 2016-05-03 2020-09-10 Bury Sp.Z.O.O Schaltungsanordnung und Verfahren zur Dämpfungskompensation in einer Antennensignalverbindung

Family Cites Families (106)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4551688A (en) * 1984-05-23 1985-11-05 Rockwell International Corporation Delay compensated automatic gain control
JPS62161265A (ja) * 1985-12-27 1987-07-17 Fuji Photo Film Co Ltd 放射線画像情報読取装置
JPH0496411A (ja) * 1990-08-10 1992-03-27 Sharp Corp 信号レベル減衰装置
US5548616A (en) 1994-09-09 1996-08-20 Nokia Mobile Phones Ltd. Spread spectrum radiotelephone having adaptive transmitter gain control
US5541606A (en) * 1995-02-02 1996-07-30 Trimble Navigation Limited W-code enhanced cross correlation satellite positioning system receiver
US5642116A (en) * 1995-03-06 1997-06-24 International Business Machines Corporation Self calibrating segmented digital-to-analog converter
US5708681A (en) * 1996-04-23 1998-01-13 Bell Communications Research, Inc. Hybrid analog/digital method and apparatus for controlling the transmission power level of a radio transceiver
US6744882B1 (en) * 1996-07-23 2004-06-01 Qualcomm Inc. Method and apparatus for automatically adjusting speaker and microphone gains within a mobile telephone
US5862460A (en) * 1996-09-13 1999-01-19 Motorola, Inc. Power control circuit for a radio frequency transmitter
US6018650A (en) * 1996-12-18 2000-01-25 Aironet Wireless Communications, Inc. Cellular communication devices with automated power level adjust
US6128353A (en) * 1997-07-07 2000-10-03 Lucent Technologies, Inc. Code division multiple access system with dynamic histogram control
DE69831789T2 (de) * 1997-08-08 2006-07-06 Sony Deutschland Gmbh Kalibrierung eines n-port-empfängers
US6125266A (en) * 1997-12-31 2000-09-26 Nokia Mobile Phones Limited Dual band architectures for mobile stations having transmitter linearization feedback
US5886573A (en) * 1998-03-06 1999-03-23 Fujant, Inc. Amplification using amplitude reconstruction of amplitude and/or angle modulated carrier
TW382858B (en) * 1998-03-10 2000-02-21 Winbond Elelctronics Corp Device for providing multiple reference voltages
JP3109589B2 (ja) 1998-03-18 2000-11-20 日本電気株式会社 Cdma端末の送信パワー調整方法及び装置
FI981515A (fi) * 1998-07-01 2000-01-02 Nokia Multimedia Network Terminals Oy Menetelmä ja laite digitaalivastaanottimen signaalitason säätämiseksi
JP3911861B2 (ja) * 1998-07-22 2007-05-09 ソニー株式会社 通信方法、送信電力制御方法及び移動局
US6370203B1 (en) * 1998-11-04 2002-04-09 Ericsson Inc. Power control for wireless communications system
US6366622B1 (en) * 1998-12-18 2002-04-02 Silicon Wave, Inc. Apparatus and method for wireless communications
JP3618055B2 (ja) * 1999-02-05 2005-02-09 富士通株式会社 携帯移動端末および送信装置
JP3554218B2 (ja) 1999-03-17 2004-08-18 富士通株式会社 電力制御回路および送信機
JP2000349640A (ja) * 1999-06-02 2000-12-15 Nec Corp 符号分割多重化送信装置
DE69940998D1 (de) * 1999-06-30 2009-07-30 Alcatel Lucent Verfahren zur breitbandigen Linearisierung von Leistungsverstärkern
US6356146B1 (en) * 1999-07-13 2002-03-12 Pmc-Sierra, Inc. Amplifier measurement and modeling processes for use in generating predistortion parameters
US6697436B1 (en) * 1999-07-13 2004-02-24 Pmc-Sierra, Inc. Transmission antenna array system with predistortion
US6587514B1 (en) * 1999-07-13 2003-07-01 Pmc-Sierra, Inc. Digital predistortion methods for wideband amplifiers
GB2352570B (en) * 1999-07-28 2003-12-24 Wireless Systems Int Ltd Distortion reduction
US6229466B1 (en) * 1999-08-23 2001-05-08 Level One Communications, Inc. Digital calibration method and apparatus for multi-bit delta-sigma D/A converter
FI107659B (fi) * 1999-11-26 2001-09-14 Nokia Mobile Phones Ltd Signaalin laadun parantaminen
JP3381689B2 (ja) * 1999-11-30 2003-03-04 日本電気株式会社 非線形歪み補償回路及びそれを用いた送信装置並びに移動通信機
US7570929B1 (en) * 2000-01-14 2009-08-04 Symbol Technologies, Inc. 802.11 networks using dynamic power control for RF transmission
US6421397B1 (en) * 2000-01-28 2002-07-16 Alcatel Canada Inc. Modulation system having on-line IQ calibration
US6421398B1 (en) * 2000-01-28 2002-07-16 Alcatel Canada Inc. Modulation system having on-line IQ calibration
EP1124324A1 (de) * 2000-02-10 2001-08-16 Alcatel Verfahren zur Linearisierung eines Sendesystems über ein breites Frequenzband mit einem Leistungsverstärker
US6842492B1 (en) * 2000-02-18 2005-01-11 Lucent Technologies Inc. Method and apparatus for peak-to-average signal reduction for radio frequency transmitters
US6633766B1 (en) * 2000-04-24 2003-10-14 Telefonaktiebolaget Lm Ericsson (Publ) Frequency selective RF output power calibration using digital and analog power measurements for use in a cellular telecommunications system
EP1156635B1 (de) * 2000-05-17 2006-10-18 Alcatel Multiplikationsanordnung, Signalmodulator und Sender
JP3444270B2 (ja) * 2000-05-23 2003-09-08 日本電気株式会社 アレーアンテナ受信装置の校正システム
US6654594B1 (en) * 2000-05-30 2003-11-25 Motorola, Inc. Digitized automatic gain control system and methods for a controlled gain receiver
JP3526815B2 (ja) * 2000-06-07 2004-05-17 シャープ株式会社 可変利得制御装置
JP2004503163A (ja) * 2000-07-11 2004-01-29 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 自動利得制御回路
US6584330B1 (en) * 2000-07-18 2003-06-24 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive power management for a node of a cellular telecommunications network
US6985433B1 (en) * 2000-09-15 2006-01-10 Flarion Technologies, Inc. Methods and apparatus for determining minimum cyclicprefix durations
JP3360731B2 (ja) * 2000-10-27 2002-12-24 日本電気株式会社 アレーアンテナ校正方法およびアレーアンテナ受信装置
US6496063B2 (en) * 2000-12-04 2002-12-17 Texas Instruments Incorporated Selectable diode bias for power amplifier control in a wireless telephone handset
JP2002208869A (ja) * 2001-01-09 2002-07-26 Sony Corp マルチバンド無線信号送受信装置
US6587511B2 (en) * 2001-01-26 2003-07-01 Intel Corporation Radio frequency transmitter and methods thereof
US6677823B2 (en) * 2001-02-28 2004-01-13 Andrew Corporation Gain compensation circuit using a variable offset voltage
US7346134B2 (en) * 2001-05-15 2008-03-18 Finesse Wireless, Inc. Radio receiver
DE10124179A1 (de) * 2001-05-17 2002-07-25 Infineon Technologies Ag Vorrichtung und Verfahren zur Regelung der Ausgangsleistung von Mobilfunkstationen
JP2002374133A (ja) * 2001-06-14 2002-12-26 Mitsubishi Electric Corp 自動利得制御回路及び自動利得制御方法
US6819938B2 (en) * 2001-06-26 2004-11-16 Qualcomm Incorporated System and method for power control calibration and a wireless communication device
US6983127B1 (en) * 2001-07-31 2006-01-03 Arraycomm, Inc. Statistical calibration of wireless base stations
SE0102885D0 (en) * 2001-08-28 2001-08-28 Ericsson Telefon Ab L M Calibration of an adaptive signal conditioning systern
US7362818B1 (en) * 2001-08-30 2008-04-22 Nortel Networks Limited Amplitude and phase comparator for microwave power amplifier
AU2002364572A1 (en) * 2001-12-18 2003-07-09 Globespan Virata Incorporated System and method for rate enhanced shdsl
DE10163466A1 (de) * 2001-12-21 2003-07-10 Infineon Technologies Ag Sendeanordnung für zeitkontinuierliche Datenübertragung
FR2835120B1 (fr) * 2002-01-21 2006-10-20 Evolium Sas Procede et dispositif de preparation de signaux destines a etre compares pour etablir une pre-distorsion sur l'entree d'un amplificateur
US6980774B2 (en) * 2002-01-22 2005-12-27 Broadcom, Corp. Radio frequency integrated circuit
US6819910B2 (en) * 2002-03-08 2004-11-16 Broadcom Corp. Radio employing a self calibrating transmitter with reuse of receiver circuitry
US6650691B2 (en) * 2002-02-12 2003-11-18 Motorola, Inc. Power control in spread spectrum communications systems
TW571266B (en) * 2002-02-27 2004-01-11 Friend Spring Ind Co Ltd Control method and device of full-color LED audio/visual generating system
US7340265B2 (en) * 2002-02-28 2008-03-04 Atheros Communications, Inc. Method and apparatus for transient frequency distortion compensation
US7151947B2 (en) * 2002-05-08 2006-12-19 Motorola, Inc. Method and apparatus for controlling transmission power associated with a transmitting unit
US7194022B2 (en) * 2002-06-07 2007-03-20 Nokia Corporation Method and system having capacity-dependent baseband gain and coverage-capacity swapping in a multi-carrier base station transmitters
AU2003287049A1 (en) * 2002-10-11 2004-05-04 Glowink Communications Technology Uplink power control using loopback communications carriers
DE10250555A1 (de) * 2002-10-30 2004-05-19 Philips Intellectual Property & Standards Gmbh Verfahren zur Ermittlung von Filterköffizienten eines digitalen Filters und digitales Filter
ES2277123T3 (es) * 2002-11-04 2007-07-01 Research In Motion Limited Metodo y aparato para regular la potencia transmitida en sistemas de comunicaciones inalambricas con multifrecuencia de datos.
US6834183B2 (en) * 2002-11-04 2004-12-21 Motorola, Inc. VCO gain tracking for modulation gain setting calibration
EP1573902B1 (de) * 2002-11-22 2013-01-16 Telefonaktiebolaget L M Ericsson (Publ) Methode zur digitale phasen- und verstärkungsanpassung in echtzeit mit hilfe von signalrückkopplung sowie diese methode verwendendes gerät
US7471738B2 (en) * 2002-12-02 2008-12-30 Research In Motion Limited Method and apparatus for optimizing transmitter power efficiency
US7103377B2 (en) * 2002-12-03 2006-09-05 Adc Telecommunications, Inc. Small signal threshold and proportional gain distributed digital communications
US6785558B1 (en) * 2002-12-06 2004-08-31 Lgc Wireless, Inc. System and method for distributing wireless communication signals over metropolitan telecommunication networks
US7251290B2 (en) * 2002-12-16 2007-07-31 Nortel Networks Limited Adaptive controller for linearization of transmitter
JP4212557B2 (ja) * 2002-12-20 2009-01-21 株式会社ルネサステクノロジ 送信回路およびそれを用いた送受信機
US7302246B2 (en) * 2002-12-23 2007-11-27 Intel Corporation Programmable gain amplifier with self-adjusting offset correction
US7027783B2 (en) * 2003-02-24 2006-04-11 Sami Vilhonen Method and apparatus providing reduction in transmitter current consumption using signal derived from rectified input signal
US7026874B2 (en) * 2003-02-24 2006-04-11 Nokia Corporation Methods and apparatus for improving the operation of a variable gain amplifier (VGA)
US7340268B2 (en) * 2003-02-26 2008-03-04 Qualcomm Incorporated Reliability determination and combining of power control commands received in a wireless communication system
DE10308923A1 (de) * 2003-02-28 2004-09-16 Infineon Technologies Ag Schaltungsanordnung und Verfahren zur Kompensation von Signalpegelsprüngen in Verstärkungseinrichtungen
US6873833B2 (en) * 2003-03-27 2005-03-29 Interdigital Technology Corporation Method and apparatus for estimating and controlling initial time slot gain in a wireless communication system
US6985033B1 (en) * 2003-05-15 2006-01-10 Marvell International Ltd. Circuits and methods for adjusting power amplifier predistortion, and power amplifiers and other devices including the same
US6907025B2 (en) * 2003-06-06 2005-06-14 Interdigital Technology Corporation Adjusting the amplitude and phase characteristics of transmitter generated wireless communication signals in response to base station transmit power control signals and known transmitter amplifier characteristics
US7310381B2 (en) * 2003-06-16 2007-12-18 Intel Corporation Power amplifier pre-distortion device and method for orthogonal frequency division multiplexing
US7062234B2 (en) * 2003-07-28 2006-06-13 Andrew Corporation Pre-distortion cross-cancellation for linearizing power amplifiers
US7218850B2 (en) * 2003-08-07 2007-05-15 Lucent Technologies Inc. Apparatus and method for monitoring signal-to-noise ratio in optical transmission systems
US20050052990A1 (en) * 2003-09-10 2005-03-10 Envara Ltd. Orthogonal frequency division multiplexing error vector magnitude calibration based on separate multi-tone measurement
US7593692B2 (en) * 2003-09-15 2009-09-22 Broadcom Corporation Radar detection circuit for a WLAN transceiver
US7109792B2 (en) * 2003-09-17 2006-09-19 Andrew Corporation Table-based pre-distortion for amplifier systems
US6880262B1 (en) * 2003-09-30 2005-04-19 Broadcom Corporation Continuous time ΔΣ ADC with dithering
JP2007509524A (ja) * 2003-10-16 2007-04-12 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ データ処理装置における時間基準調整
AU2003279989A1 (en) * 2003-10-20 2005-06-08 Thomson Licensing A predistorter for use in a wireless transmitter
US20050089123A1 (en) * 2003-10-23 2005-04-28 Solon Spiegel Circuit method and system for automatic gain control
US7298207B2 (en) * 2003-12-11 2007-11-20 Texas Instruments Incorporated Automatic gain control for a multi-stage gain system
US7218258B2 (en) * 2004-02-05 2007-05-15 Broadcom Corporation Method and system for mixed analog-digital automatic gain control
US7248890B1 (en) * 2004-02-06 2007-07-24 Vativ Technologies, Inc. Channel power balancing in a multi-channel transceiver system
US7333563B2 (en) * 2004-02-20 2008-02-19 Research In Motion Limited Method and apparatus for improving power amplifier efficiency in wireless communication systems having high peak to average power ratios
US7308042B2 (en) * 2004-02-27 2007-12-11 Research In Motion Limited Method and apparatus for optimizing transmitter power efficiency
WO2005089387A2 (en) * 2004-03-16 2005-09-29 Jaalaa, Inc. High-reliability computer interface for wireless input devices
US7580481B2 (en) * 2004-04-30 2009-08-25 Silicon Laboratories Inc. I/Q timing mismatch compensation
KR100688883B1 (ko) * 2005-03-11 2007-03-02 엘지전자 주식회사 2 채널 아날로그/디지털 변환기의 매칭회로
US7676208B2 (en) * 2005-12-09 2010-03-09 Electronics And Telecommunications Research Institute Automatic gain control device having variable gain control interval and method thereof
US7355477B2 (en) * 2006-06-13 2008-04-08 Agere Systems Inc. Transmitter power control loop for high-speed wireless LANs
US7715493B2 (en) * 2006-08-14 2010-05-11 Intel Corporation Digital transmitter and methods of generating radio-frequency signals using time-domain outphasing
JP4445995B2 (ja) * 2007-12-10 2010-04-07 株式会社半導体理工学研究センター パイプライン型a/d変換装置

Also Published As

Publication number Publication date
CN1784837B (zh) 2011-01-26
WO2004100396A8 (en) 2005-12-01
WO2004100396A1 (en) 2004-11-18
CN1784837A (zh) 2006-06-07
US7809393B2 (en) 2010-10-05
JP2006526916A (ja) 2006-11-24
EP1625675B1 (de) 2007-09-05
DE602004008769T2 (de) 2008-01-24
US20080200199A1 (en) 2008-08-21
DE602004008769D1 (de) 2007-10-18
EP1625675A1 (de) 2006-02-15

Similar Documents

Publication Publication Date Title
ATE372611T1 (de) Verfahren und anordnung zur einstellung der sendeleistung eines mobilübertragungsgerät
DE60310043D1 (de) Drahtloses kommunikationssystem mit adaptiver schwelle zur zeitsteuerungsabweichungsmessung und -verfahren
ATE555622T1 (de) Drahtlose kommunikationsverfahren und bakensignale verwendende vorrichtung
WO2007075736A3 (en) Methods and apparatus for generating, communicating, and/or using information relating to self-noise
DE60335908D1 (de) Verfahren und vorrichtung zur regelung der sendeleistung und übertragungsrate einer funkverbindung
WO2008070494A3 (en) System for automatically determining cell transmitter parameters to facilitate the location of wireless devices
EP2615768A3 (de) Pilotsignal-Sendeverfahren, Funkkommunikationssystem, und Vorrichtung und Programm dafür
ATE545305T1 (de) Verfahren zur kombinierte leistungsregelung in geschlossener und offener schleife in einem funkkommunikationssystem, entsprechendes basisstation und entferntes sende-empfängers
DE60232721D1 (de) Verfahren und system zur ausnutzung der polarisationswiederverwendung in drahtlosen übermittlungen
DE602007009908D1 (de) Verfahren und Vorrichtung zur Anpassung der Übertragungsleistung eines Pilotkanals
HK1098260A1 (en) System and method for received channel power indicator (rcpi) measurement
ATE485636T1 (de) Verfahren zur durchführung eines direktzugriffsverfahrens bei einer mobilen vorrichtung
DE602004006382D1 (de) Drahtlose sender-empfänger, verfahren und computerprogrammprodukte zur beschränkung der sendeleistung auf der basis von signal-stör-verhältnissen
DE60220449D1 (de) Verfahren und gerät zur dopplerspreizschätzung und dopplerverschiebungschätzung
TW200701807A (en) System, apparatus and method of varying channel bandwidth
TW200644451A (en) Method and device for transmitting a sequence of transmission bursts
WO2007106644A3 (en) Apparatus and method for determining a downlink transmit power characteristic in a cellular communication system
EP2099231A4 (de) Funkbasisstationsgerät, funkendgerät und funkkommunikationssystem
DE602005007174D1 (de) Verfahren zur Verwendung des Signal-Rausch-Verhältnisses (SNR) zum Reduzieren der Prüffabrikzeit
ATE471596T1 (de) Bestimmung eines inter-slot-leistungspegels
TW200744332A (en) Method and apparatus of receiving signals and wireless multimode wideband receiver
DE602005003136D1 (de) Anordnung zur verringerung der gleichkanalstörung in satellitenkommunikationssystemen, und verfahren

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties