Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general

HELECTRICITY H03Electronic circuits H03JTUNING RESONANT CIRCUITS SELECTING RESONANT CIRCUITS

H03J1/00Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general

H03J1/0008using a central processing unit H03J1/0016Indicating arrangements H03J1/0025in a remote control unit H03J1/0033for voltage synthesis with a D/A converter H03J1/0041for frequency synthesis with counters or frequency dividers H03J1/005in a loop H03J1/0058provided with channel identification means H03J1/0066with means for analysing the received signal strength H03J1/0075where the receiving frequencies of the stations are stored in a permanent memory H03J1/0083using two or more tuners H03J1/0091provided with means for scanning over a band of frequencies H03J1/02Indicating arrangements H03J1/025with voiced announcement H03J1/04with optical indicating means H03J1/041Pointers, markers, or the like, for tuning dials; Folding dials H03J1/042Means insuring a precise reading of the dial H03J1/044Illumination of the tuning dial; On and off switching of the illumination; Circuits related with illumination H03J1/045Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like H03J1/047using electronic means H03J1/048with digital indication H03J1/06Driving or adjusting arrangements combined with other driving or adjusting arrangements H03J1/063Special arrangements taken in correlation with the wear; Suppressing backlash; Locking in a desired position H03J1/066Constructional details regarding potentiometric setting of voltage or current variable reactances H03J1/08Toothed-gear drive Worm drive H03J1/10Rope drive Chain drive H03J1/12Friction drive H03J1/14Special arrangements for fine and coarse tuning H03J1/16Single control means independently performing two or more functions H03J1/18Control by auxiliary power H03J1/182using a ring of magnets or the like H03J1/185the auxiliary power producing an adjustment dependent on the current intensity H03J1/187the auxiliary power balancing automatically a Wheatstone bridge or the like, that has been unbalanced by the controlling device H03J1/20the auxiliary power being switched on as long as controlling current is switched on H03J1/22with stepping arrangements actuated by control pulses