CA2200960C - Radio multibande - Google Patents

Radio multibande Download PDF

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Publication number
CA2200960C
CA2200960C CA 2200960 CA2200960A CA2200960C CA 2200960 C CA2200960 C CA 2200960C CA 2200960 CA2200960 CA 2200960 CA 2200960 A CA2200960 A CA 2200960A CA 2200960 C CA2200960 C CA 2200960C
Authority
CA
Canada
Prior art keywords
signal
mode
signals
frequency
produce
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.)
Expired - Fee Related
Application number
CA 2200960
Other languages
English (en)
Other versions
CA2200960A1 (fr
Inventor
Richard K. Kornfeld
Charles E. Wheatley, Iii
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.)
Qualcomm Inc
Original Assignee
Qualcomm 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
Priority claimed from US08/316,188 external-priority patent/US5758266A/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of CA2200960A1 publication Critical patent/CA2200960A1/fr
Application granted granted Critical
Publication of CA2200960C publication Critical patent/CA2200960C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

La présente invention concerne une radio à accès multiple par différence de fréquence (AMDF) à deux bandes fonctionnant simultanément sur des fréquences multiples aussi bien en émission qu'en réception. La logique de l'étage émission est de dédoubler les circuits de fréquences intermédiaires (103) et de mélanger les fréquences intermédiaires des deux différentes fréquences d'émission au moyen de deux synthétiseurs de fréquences (140 et 145). L'étage réception (104) comporte deux canaux H.F. (116 et 117) qui sont mélangés avec les fréquences générées par les synthétiseurs (140, 145) et additionnés en un seul étage de fréquence intermédiaire. Grâce à cet agencement, la radio de la présente invention est capable de basculer en douceur entre les fréquences pendant une communication avec simultanément les deux stations de base. En outre, si l'on souhaite communiquer simultanément avec plus de deux stations de base, il est possible d'ajouter des étages mélangeurs et des synthétiseurs.
CA 2200960 1994-09-30 1995-09-27 Radio multibande Expired - Fee Related CA2200960C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US316,188 1994-09-30
US08/316,188 US5758266A (en) 1994-09-30 1994-09-30 Multiple frequency communication device
PCT/US1995/012388 WO1996010871A1 (fr) 1994-09-30 1995-09-27 Radio multibande

Publications (2)

Publication Number Publication Date
CA2200960A1 CA2200960A1 (fr) 1996-04-11
CA2200960C true CA2200960C (fr) 2005-11-29

Family

ID=35520596

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2200960 Expired - Fee Related CA2200960C (fr) 1994-09-30 1995-09-27 Radio multibande

Country Status (1)

Country Link
CA (1) CA2200960C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115913122A (zh) * 2023-01-09 2023-04-04 北京思信飞扬信息技术股份有限公司 射频信号的生成方法和系统

Also Published As

Publication number Publication date
CA2200960A1 (fr) 1996-04-11

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