GB1461087A - Automatic tuning apparatus - Google Patents
Automatic tuning apparatusInfo
- Publication number
- GB1461087A GB1461087A GB6002273A GB6002273A GB1461087A GB 1461087 A GB1461087 A GB 1461087A GB 6002273 A GB6002273 A GB 6002273A GB 6002273 A GB6002273 A GB 6002273A GB 1461087 A GB1461087 A GB 1461087A
- Authority
- GB
- United Kingdom
- Prior art keywords
- memory device
- circuit
- tuning
- charging
- output
- 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
Links
- 238000007599 discharging Methods 0.000 abstract 7
- 239000007787 solid Substances 0.000 abstract 3
- 239000003792 electrolyte Substances 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0561—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
- H01M10/0562—Solid materials
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
- H03J7/08—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using varactors, i.e. voltage variable reactive diodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/18—Automatic scanning over a band of frequencies
- H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
- H03J7/24—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes
- H03J7/26—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes in which an automatic frequency control circuit is brought into action after the scanning action has been stopped
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Picture Signal Circuits (AREA)
Abstract
1461087 Stop on signal receivers; AFC circuits SANYO ELECTRIC CO Ltd 28 Dec 1973 [8 June 1973 (3) 31 Aug 1973] 60022/73 Headings H3Q and H3A An automatic tuning apparatus comprises a solid state electro-chemical potential memory device 13 (1, Fig. 1, not shown) having a solid state electrolyte (4) between a cathode (2) including an active metal and an anode (3) comprising a compound including the metal, a tuning circuit 21 comprising a voltage controlled variable reactance device connected to be supplied with a voltage associated with the terminal voltage of the memory device, a circuit 12 for selectively charging or discharging the memory device and a circuit 40-42 and 47-49 responsive to a signal indicative that the tuning circuit 21 is tuned to a desired frequency for disabling the circuit 12 for discontinuing the charging or discharging of the memory device. In the TV receiver shown in Fig. 6 the scanning of TV channels up or down is started by manually operable up switch 11U or down switch 11D which operate a control circuit 12, shown in detail in Fig. 7, to charge the memory device 13 via R72, FET TR73 or discharge the memory device 13 via R71, FET TR73 and TR71 so as to tune a channel selector or tuner 21 to higher or lower channels. Lower and upper threshold detectors 15, 16 such as transistor Schmitt circuits (Fig. 8, not shown) are alternately operated in response to the charge and discharge of the memory device 13 reaching the thresholds of these circuits to change the control circuit 12 to discharge and charge states respectively. The operation of the threshold 15, 16 prevents the device 13 from being damaged by overcharging. The outputs from these threshold circuits 15, 16 set and reset a flip flop 17 so as to first enable a gate 20 to pass an output ramp voltage from a DC amplifier 14 via an inverter 19 to the tuning input of the channel selector 21 and then second to enable a second gate 18 to pass the output ramp voltage of the DC amplifier 14 to the tuning input of the channel selector 21. The ramp voltages are supplied to variable capacitance diodes (VC1, VC2, Fig. 9, not shown) of the hf amplifier and local oscillator of the tuner 21. An output from the flip flop 17 is fed via an inverter 29 to waveband switching diodes (D91 and D92) in the tuner 21 so that these diodes are off for low frequency channels and on for higher frequency channels. The output from the IF amplifier 23 is fed to a tuning detector circuit 40-41 and 47-49 shown in detail in Fig. 10. When the sound and video components of the IF passed by BPF's 47 and 48 reaches a level determined by level detectors 49 corresponding to a received signal an output signal sets a flipflop 134 which was reset from 135, Fig. 7 on operation of a switch 11 for channel selection. Also a frequency detector 42 such as a ratio detector operates via a charging/discharging control signal generating circuit 40 to provide an AFC. When exact tuning is detected the outputs 122, 123 from the circuit 40 together with the output from the flipflop 134 operate via an AND gate 41 to disable the control circuit 12 to stop the charging or discharging of the potential memory device 13. Simultaneous detection of the sound or video component and a synchronising pulse output can be used instead of control by the sound and video components. Any drift in tuning detected causes charging or discharging control signals from 120, 121 to control the charging or discharging of the potential memory device 13 so as to retain the tuning on the received signal. A simplified embodiment is disclosed (Fig. 4, not shown) which excludes the AFC. The memory device 13 includes a main cathode 32 of Ag for charging and discharging and an auxiliary cathode 34 of Ag for providing the ramp voltage output, a solid state electrolyte Ag 3 SI (31, Fig. 3, not shown) and an anode 33 of Ag-Te. The apparatus may be applied to AM and FM radio receivers. Specification 1461086 is referred to.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6494373A JPS5015413A (en) | 1973-06-08 | 1973-06-08 | |
JP6494573A JPS5015415A (en) | 1973-06-08 | 1973-06-08 | |
JP6494473A JPS576287B2 (en) | 1973-06-08 | 1973-06-08 | |
JP9864073A JPS5048815A (en) | 1973-08-31 | 1973-08-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1461087A true GB1461087A (en) | 1977-01-13 |
Family
ID=27464509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6002273A Expired GB1461087A (en) | 1973-06-08 | 1973-12-28 | Automatic tuning apparatus |
Country Status (4)
Country | Link |
---|---|
CA (1) | CA1019855A (en) |
DE (1) | DE2404497C3 (en) |
FR (1) | FR2232877B1 (en) |
GB (1) | GB1461087A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1033478A (en) * | 1974-07-18 | 1978-06-20 | Sanyo Electric Co. Ltd. | Automatic tuning apparatus |
JPS5345252B2 (en) * | 1974-12-17 | 1978-12-05 | ||
JPH0761013B2 (en) * | 1988-07-19 | 1995-06-28 | 富士通株式会社 | Cesium atomic oscillator |
-
1973
- 1973-12-11 CA CA187,909A patent/CA1019855A/en not_active Expired
- 1973-12-28 GB GB6002273A patent/GB1461087A/en not_active Expired
-
1974
- 1974-01-22 FR FR7402051A patent/FR2232877B1/fr not_active Expired
- 1974-01-31 DE DE2404497A patent/DE2404497C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2232877B1 (en) | 1976-11-26 |
DE2404497C3 (en) | 1980-07-24 |
DE2404497B2 (en) | 1979-11-08 |
FR2232877A1 (en) | 1975-01-03 |
CA1019855A (en) | 1977-10-25 |
DE2404497A1 (en) | 1974-12-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19931227 |