JPH0344941U - - Google Patents
Info
- Publication number
- JPH0344941U JPH0344941U JP1989103954U JP10395489U JPH0344941U JP H0344941 U JPH0344941 U JP H0344941U JP 1989103954 U JP1989103954 U JP 1989103954U JP 10395489 U JP10395489 U JP 10395489U JP H0344941 U JPH0344941 U JP H0344941U
- Authority
- JP
- Japan
- Prior art keywords
- output
- fine adjustment
- digital data
- communication frequency
- zero
- 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.)
- Granted
Links
- 238000006243 chemical reaction Methods 0.000 claims 3
- 230000010355 oscillation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Transceivers (AREA)
Description
第１図はこの考案の一実施例の構成を示すブロ
ツク図。第２図はこの考案の一実施例の作用の説
明に供する特性図。
１……クラリフアイヤ可変抵抗、２……Ａ／Ｄ
変換器、３……マイクロコンピユータ、３−１…
…データ演算手段、３−２……零領域判別手段、
３−３……ＰＬＬデータ処理手段、４……ＰＬＬ
回路。
FIG. 1 is a block diagram showing the configuration of an embodiment of this invention. FIG. 2 is a characteristic diagram for explaining the operation of one embodiment of this invention. 1...Clarifier variable resistor, 2...A/D
Converter, 3...Microcomputer, 3-1 ...
...data calculation means, 3-2 ...zero region discrimination means,
3-3 ...PLL data processing means, 4...PLL
circuit.
Claims (1)
つて、微調整操作量指示手段と、微調整操作量指
示手段からの出力をデジタルデータに変換するＡ
／Ｄ変換手段と、Ａ／Ｄ変換手段からの出力デジ
タルデータが所定範囲以内のとき周波数微調整量
を零とする出力を発生し、かつ前記所定範囲外の
ときＡ／Ｄ変換手段からの出力デジタルデータに
対応した周波数微調整量とする出力を発生する零
範囲拡大手段と、零範囲拡大手段の出力を受けて
通信周波数を微調整される通信周波数発振手段と
を備えたことを特徴とする通信周波数微調整装置
。 A communication frequency fine adjustment device in a wireless communication device, which includes a fine adjustment operation amount instruction means and converts an output from the fine adjustment operation amount instruction means into digital data.
/D conversion means and output digital data from the A/D conversion means generate an output that makes the frequency fine adjustment amount zero when it is within a predetermined range, and output from the A/D conversion means when it is outside the predetermined range. The present invention is characterized by comprising: zero range expansion means for generating an output as a frequency fine adjustment amount corresponding to digital data; and communication frequency oscillation means for finely adjusting the communication frequency in response to the output of the zero range expansion means. Communication frequency fine adjustment device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989103954U JPH0526839Y2 (en) | 1989-09-06 | 1989-09-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989103954U JPH0526839Y2 (en) | 1989-09-06 | 1989-09-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0344941U true JPH0344941U (en) | 1991-04-25 |
| JPH0526839Y2 JPH0526839Y2 (en) | 1993-07-07 |
Family
ID=31652767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989103954U Expired - Lifetime JPH0526839Y2 (en) | 1989-09-06 | 1989-09-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0526839Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6237443U (en) * | 1985-08-23 | 1987-03-05 | ||
| JPS63192731U (en) * | 1987-05-30 | 1988-12-12 |
-
1989
- 1989-09-06 JP JP1989103954U patent/JPH0526839Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6237443U (en) * | 1985-08-23 | 1987-03-05 | ||
| JPS63192731U (en) * | 1987-05-30 | 1988-12-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0526839Y2 (en) | 1993-07-07 |
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