发明名称 |
CORDLESS TELEPHONE SET AND ITS TEST METHOD |
摘要 |
PURPOSE:To prevent crosstalk and suppression without use of a shield room by setting a channel of a frequency different from a channel preset between frequencies of each channel corresponding to the entry of an operation key or a switch. CONSTITUTION:A base set 10 is provided with a computer 44 forming a system controller and with a sender side PLL 60 and a reception side PLL 61 and each is controlled by the system controller comprising the computer 44. In this case, the sender side PLL 60 is connected to a sender side VCO 62 and the VCO 62 revises the frequency of a mixer 19. The receiver side PLL 61 revises the frequency of a VCO 39 of the receiver side circuit 30 for the sender side PLL 60. Then a channel having a frequency different from a frequency of a preset channel is set between frequencies of each channel corresponding to the operation key or switch entry.
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申请公布号 |
JPH06140972(A) |
申请公布日期 |
1994.05.20 |
申请号 |
JP19920309295 |
申请日期 |
1992.10.23 |
申请人 |
SONY CORP |
发明人 |
SUGAWARA KENICHI;KOYAMA MASANORI;TAKIZAWA TAKESHI |
分类号 |
H04B7/26;H04W24/00;H04W76/02;H04W84/10;(IPC1-7):H04B7/26 |
主分类号 |
H04B7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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