MX2014009859A - Decodificacion dinamica de comunicacion entre lector de tarjeta y dispositivo portatil. - Google Patents

Decodificacion dinamica de comunicacion entre lector de tarjeta y dispositivo portatil.

Info

Publication number
MX2014009859A
MX2014009859A MX2014009859A MX2014009859A MX2014009859A MX 2014009859 A MX2014009859 A MX 2014009859A MX 2014009859 A MX2014009859 A MX 2014009859A MX 2014009859 A MX2014009859 A MX 2014009859A MX 2014009859 A MX2014009859 A MX 2014009859A
Authority
MX
Mexico
Prior art keywords
data signal
start sequence
encoded data
received
scanning
Prior art date
Application number
MX2014009859A
Other languages
English (en)
Other versions
MX339393B (es
Inventor
Fredrik Andersson
Original Assignee
Izettle Merchant Services Ab
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 Izettle Merchant Services Ab filed Critical Izettle Merchant Services Ab
Publication of MX2014009859A publication Critical patent/MX2014009859A/es
Publication of MX339393B publication Critical patent/MX339393B/es

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H03M5/04—Conversion to or from representation by pulses the pulses having two levels
    • H03M5/06—Code representation, e.g. transition, for a given bit cell depending only on the information in that bit cell
    • H03M5/12—Biphase level code, e.g. split phase code, Manchester code; Biphase space or mark code, e.g. double frequency code
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1004—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's to protect a block of data words, e.g. CRC or checksum
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H03M5/04—Conversion to or from representation by pulses the pulses having two levels
    • H03M5/06—Code representation, e.g. transition, for a given bit cell depending only on the information in that bit cell

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)

Abstract

La tecnología propuesta generalmente se refiere al campo de transmisión de datos, en particular se refiere a la decodificación de una señal de datos codificada recibida en una interfaz de audio de un dispositivo electrónico portátil, en donde la señal de datos codificada es codificada con un esquema de codificación que tiene una frecuencia de reloj del codificador ajustable. El método propuesto comprende pre-procesar S1 la señal de datos codificada recibida; escanear S2 la señal de datos codificada recibida para una secuencia de inicio conocida y cuando una secuencia de inicio conocida es exitosamente detectada entonces calcular S3 una frecuencia real basada en la secuencia de inicio detectada; interpretar S4, un bloque de datos que sucede a la secuencia de inicio usando la frecuencia real evaluada; y evaluar S5 si se requiere ajuste S5 de la frecuencia de reloj del codificador ajustable basada en el escaneo S2 y/o la interpretación S4. La tecnología propuesta se refiere a un método realizado en un dispositivo de comunicación portátil, así como a un dispositivo y a un programa de computadora correspondientes.
MX2014009859A 2013-08-16 2014-08-15 Decodificacion dinamica de comunicacion entre lector de tarjeta y dispositivo portatil. MX339393B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361866656P 2013-08-16 2013-08-16
EP13195098.2A EP2838203A3 (en) 2013-08-16 2013-11-29 Dynamic decoding of communication between card reader and portable device

Publications (2)

Publication Number Publication Date
MX2014009859A true MX2014009859A (es) 2015-03-31
MX339393B MX339393B (es) 2016-05-25

Family

ID=50002402

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2014009859A MX339393B (es) 2013-08-16 2014-08-15 Decodificacion dinamica de comunicacion entre lector de tarjeta y dispositivo portatil.

Country Status (4)

Country Link
US (1) US9805730B2 (es)
EP (1) EP2838203A3 (es)
BR (1) BR102014020062A2 (es)
MX (1) MX339393B (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6493347B2 (ja) * 2016-09-29 2019-04-03 京セラドキュメントソリューションズ株式会社 画像形成装置、通信方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3347667B2 (ja) * 1998-05-20 2002-11-20 沖電気工業株式会社 マンチェスタ符号化データ復号化装置
US9286635B2 (en) * 2002-02-05 2016-03-15 Square, Inc. Method of transmitting information from efficient communication protocol card readers to mobile devices
KR100771355B1 (ko) * 2005-08-29 2007-10-29 주식회사 엘지화학 열가소성 수지 조성물
EP2559012B1 (en) 2010-07-09 2014-06-18 iZettle Merchant Services AB System for secure payment over a wireless communication network
KR101140919B1 (ko) * 2011-08-20 2012-05-03 허인구 모바일을 이용한 멀티 카드 리더 장치 및 방법
US20130058419A1 (en) * 2011-09-05 2013-03-07 Zhou Ye Wireless video/audio data transmission system
US20130087614A1 (en) 2011-10-10 2013-04-11 Mag Tek, Inc. Audio jack coupled secure magnetic card reader
US9271099B1 (en) * 2012-08-23 2016-02-23 Yihuan Sun Method and apparatus to use audio port to provide power and data communications for peripheral devices
US9292036B2 (en) * 2013-05-24 2016-03-22 Arm Limited Data processing apparatus and method for communicating between a master device and an asynchronous slave device via an interface

Also Published As

Publication number Publication date
US9805730B2 (en) 2017-10-31
BR102014020062A2 (pt) 2015-09-22
MX339393B (es) 2016-05-25
EP2838203A3 (en) 2015-06-03
EP2838203A2 (en) 2015-02-18
US20150051914A1 (en) 2015-02-19

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