PROBLEM TO BE SOLVED: To flexibly cope with maintenance and control information between mobile machines by negotiation between terminals. ;SOLUTION: A frame classification detection part 123 of each of base stations 12 and 14 detects frame classifications from mobile machines 11 and 15 and multiplex...
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DMR stands for Digital Mobile Radio - an open digital radio standard. DMR has received global recognition as a technology that combines voice, data, features & applications. Digital Mobile Radio is available in three "tiers" - loosely translated as levels of complexity. Tier I islicence-free, ...
The invention relates to a cellular digital mobile radio system including base stations (B<Sub>m</Sub>, B<Sub>n</Sub>) and mobile stations (MS<Sub>1</Sub>, MS<Sub>2</Sub>) with transmitters and receivers. The invention also relates to a method of transmitting message information digit...
used to carrymobileTVcontent, while the remaining capacity could be used for other ancillary services, e.g. DAB, datacasting, etc to facilitate the developmentofdigital radio. legco.gov.hk legco.gov.hk 頻帶III及 特高頻頻帶內最少50%傳輸容量應用來傳送流動電視內容,餘 下容量則可用作提供其他附加...
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An improved mobile digital radio system is disclosed. A plurality of satellites and terrestrial repeaters transmit substantially identical information that is contained in an original time division multiplexed data stream. Each satellite transmits on a separate frequency band, and all terrestrial repeaters...
United States Patent US4383332 Note: If you have problems viewing the PDF, please make sure you have the latest version ofAdobe Acrobat. Back to full text