JPS5737133B2 - - Google Patents
Info
- Publication number
- JPS5737133B2 JPS5737133B2 JP12140175A JP12140175A JPS5737133B2 JP S5737133 B2 JPS5737133 B2 JP S5737133B2 JP 12140175 A JP12140175 A JP 12140175A JP 12140175 A JP12140175 A JP 12140175A JP S5737133 B2 JPS5737133 B2 JP S5737133B2
- Authority
- JP
- Japan
- 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
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
- H03J1/02—Indicating arrangements
- H03J1/04—Indicating arrangements with optical indicating means
- H03J1/045—Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like
- H03J1/047—Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like using electronic means, e.g. LED's
- H03J1/048—Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like using electronic means, e.g. LED's with digital indication
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Circuits Of Receivers In General (AREA)
- Transceivers (AREA)
- Superheterodyne Receivers (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/513,851 US3938048A (en) | 1974-10-10 | 1974-10-10 | Frequency measuring apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5164812A JPS5164812A (en) | 1976-06-04 |
| JPS5737133B2 true JPS5737133B2 (ja) | 1982-08-07 |
Family
ID=24044885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50121401A Granted JPS5164812A (en) | 1974-10-10 | 1975-10-09 | Dejitarudochoinjikeeta |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3938048A (ja) |
| JP (1) | JPS5164812A (ja) |
| DE (1) | DE2544037C3 (ja) |
| GB (1) | GB1524049A (ja) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2511027C2 (de) * | 1975-03-13 | 1982-07-08 | Siemens AG, 1000 Berlin und 8000 München | Selektiver Überlagerungsempfänger |
| USRE30949E (en) * | 1976-02-14 | 1982-05-25 | Trio Kabushiki Kaisha | Digital frequency display device |
| US4114101A (en) * | 1977-02-11 | 1978-09-12 | Trio Kabushiki Kaisha | Digital frequency display device |
| US4163943A (en) * | 1976-06-14 | 1979-08-07 | Matsushita Electric Industrial Co., Ltd. | Radio receiver employing premixing and digital display |
| JPS5330811A (en) * | 1976-09-03 | 1978-03-23 | Standard Kogyo Kk | Frequency digital indicator for alllmode transmitter*receiver |
| JPS5915142Y2 (ja) * | 1977-03-11 | 1984-05-04 | ヤマハ株式会社 | 受信機 |
| JPS54152805A (en) * | 1978-05-23 | 1979-12-01 | Yaesu Musen Kk | Indicator circuit for synthesizing received frequencies |
| US4225972A (en) * | 1978-05-30 | 1980-09-30 | Nippon Gakki Seizo Kabushiki Kaisha | System for indicating frequency of station signal received by superheterodyne radio receiver |
| US4799020A (en) * | 1987-02-06 | 1989-01-17 | Tektronix, Inc. | Time variant frequency correction technique |
| JPH05152989A (ja) * | 1991-12-02 | 1993-06-18 | Sony Corp | スーパーヘテロダイン受信機 |
| US6856797B2 (en) * | 2000-12-28 | 2005-02-15 | Siemens Communications, Inc. | Programmable radio receiver bandpass filter for cordless/wireless systems |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3701951A (en) * | 1971-01-05 | 1972-10-31 | Emerson Electric Co | Digital indicator for use with tunable electronic apparatus |
| US3753119A (en) * | 1971-04-07 | 1973-08-14 | Magnavox Co | Digital tuning indicator |
| JPS5227601Y2 (ja) * | 1972-02-10 | 1977-06-23 | ||
| US3758853A (en) * | 1972-03-20 | 1973-09-11 | Heath Co | Method of and apparatus for determining a tuned frequency |
-
1974
- 1974-10-10 US US05/513,851 patent/US3938048A/en not_active Expired - Lifetime
-
1975
- 1975-10-02 DE DE2544037A patent/DE2544037C3/de not_active Expired
- 1975-10-08 GB GB41131/75A patent/GB1524049A/en not_active Expired
- 1975-10-09 JP JP50121401A patent/JPS5164812A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5164812A (en) | 1976-06-04 |
| GB1524049A (en) | 1978-09-06 |
| DE2544037A1 (de) | 1976-05-20 |
| DE2544037B2 (de) | 1978-03-09 |
| DE2544037C3 (de) | 1978-11-09 |
| US3938048A (en) | 1976-02-10 |