CA2532952C - Dispositif audio portatif ayant une sensibilite reduite au brouillage rf et methodes connexes - Google Patents

Dispositif audio portatif ayant une sensibilite reduite au brouillage rf et methodes connexes Download PDF

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Publication number
CA2532952C
CA2532952C CA002532952A CA2532952A CA2532952C CA 2532952 C CA2532952 C CA 2532952C CA 002532952 A CA002532952 A CA 002532952A CA 2532952 A CA2532952 A CA 2532952A CA 2532952 C CA2532952 C CA 2532952C
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Canada
Prior art keywords
audio
portable
frequency range
predetermined frequency
input
Prior art date
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Active
Application number
CA002532952A
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English (en)
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CA2532952A1 (fr
Inventor
Lizhong Zhu
Michael Corrigan
George Mankaruse
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BlackBerry Ltd
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Research in Motion Ltd
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Publication date
Application filed by Research in Motion Ltd filed Critical Research in Motion Ltd
Priority to CA002532952A priority Critical patent/CA2532952C/fr
Publication of CA2532952A1 publication Critical patent/CA2532952A1/fr
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Publication of CA2532952C publication Critical patent/CA2532952C/fr
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06Receivers
    • H04B1/10Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1018Means associated with receiver for limiting or suppressing noise or interference noise filters connected between the power supply and the receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)

Abstract

Un dispositif audio portatif ayant une sensibilité réduite au brouillage RF sur une gamme de fréquences prédéterminée à partir d'un dispositif de communication sans fil mobile adjacent peut comporter un boîtier portable transportant une batterie, une entrée de rechargement raccordée à la batterie, une entrée de signal numérique, et une sortie de signal analogique audio. Un convertisseur N-A peut être contenu dans le boîtier portable et alimenté par la batterie pour convertir un fichier audio numérique sélectionné à partir d'une mémoire en un signal audio analogique. Un amplificateur analogique audio peut être raccordé entre le N-A et la sortie du signal analogique audio. Un premier filtre RF peut raccorder l'arrivée de l'alimentation de rechargement et un second filtre RF peut être raccordé à la sortie du signal analogique audio, tous les deux pour réduire le brouillage RF sur la gamme de fréquences prédéterminée du dispositif de communication sans fil mobile adjacent.
CA002532952A 2006-01-30 2006-01-30 Dispositif audio portatif ayant une sensibilite reduite au brouillage rf et methodes connexes Active CA2532952C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002532952A CA2532952C (fr) 2006-01-30 2006-01-30 Dispositif audio portatif ayant une sensibilite reduite au brouillage rf et methodes connexes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002532952A CA2532952C (fr) 2006-01-30 2006-01-30 Dispositif audio portatif ayant une sensibilite reduite au brouillage rf et methodes connexes

Publications (2)

Publication Number Publication Date
CA2532952A1 CA2532952A1 (fr) 2006-04-11
CA2532952C true CA2532952C (fr) 2008-09-02

Family

ID=36177481

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002532952A Active CA2532952C (fr) 2006-01-30 2006-01-30 Dispositif audio portatif ayant une sensibilite reduite au brouillage rf et methodes connexes

Country Status (1)

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CA (1) CA2532952C (fr)

Also Published As

Publication number Publication date
CA2532952A1 (fr) 2006-04-11

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