Radio receiver and buffer system therefor
First Claim
1. A buffer system for radio receivers having a processing circuit outputting audio signals to an audio analog circuit for reproduction as sounds, said buffer system comprising:
- an analog-to-digital converter for converting to digital form the analog signals outputted by the processing circuit;
a digital cyclic storage device connected to the processing circuit for continuously storing in digital form the audio signals last outputted thereby over a predetermined time interval;
and a control circuit including a mode selector comprising;
a Skip-Mode manual switch actuatable to select a Skip Mode, in which the audio circuit is connected to receive the signals from the cyclic storage device at first with a slowly increasing delay from real-time such as not to unduly distort the audio signals until the delay reaches the predetermined time interval of the cyclic storage device, and thereafter with a delay from real-time equal to that of the predetermined time interval of the cyclic storage device;
and a Skip manual switch actuatable to connect the audio circuit to receive the audio signals from the processing circuit in real-time, and thus to skip the portion of the audio signals from the processing circuit equal to that of said predetermined time interval of the cyclic storage device.
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Abstract
A buffer system for radio receivers includes an analog-to-digital converter, a digital cyclic storage device for continuously storing in digital form the audio signals last outputted thereby over a predetermined time interval, and a control circuit including a mode selector switch to select a Skip Mode, in which the receiver audio circuit receives the signals from the cyclic storage device with a slowly increasing delay from real-time, and another switch to connect the audio circuit to receive the audio signals real-time, and thus to skip a part of the broadcasted information. The mode selector may also select a Standby Mode for storing information broadcasted before the receiver has been turned on, and/or a Forward Mode for storing information broadcasted after the receiver has been turned off.
51 Citations
20 Claims
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1. A buffer system for radio receivers having a processing circuit outputting audio signals to an audio analog circuit for reproduction as sounds, said buffer system comprising:
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an analog-to-digital converter for converting to digital form the analog signals outputted by the processing circuit; a digital cyclic storage device connected to the processing circuit for continuously storing in digital form the audio signals last outputted thereby over a predetermined time interval; and a control circuit including a mode selector comprising; a Skip-Mode manual switch actuatable to select a Skip Mode, in which the audio circuit is connected to receive the signals from the cyclic storage device at first with a slowly increasing delay from real-time such as not to unduly distort the audio signals until the delay reaches the predetermined time interval of the cyclic storage device, and thereafter with a delay from real-time equal to that of the predetermined time interval of the cyclic storage device; and a Skip manual switch actuatable to connect the audio circuit to receive the audio signals from the processing circuit in real-time, and thus to skip the portion of the audio signals from the processing circuit equal to that of said predetermined time interval of the cyclic storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 20)
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12. A buffer system for radio receivers having a processing circuit outputting audio signals to an audio analog circuit for reproduction as sounds, said buffer system comprising:
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an analog-to-digital converter for converting to digital form the analog signals outputted by the processing circuit; a digital cyclic storage device connected to the processing circuit for continuously storing in digital form the audio signals last outputted thereby over a predetermined time interval; and a control circuit including a mode selector comprising; a Mode-Selector manual switch actuatable to select either (i) a Normal-Listening Mode, wherein the audio circuit is connected to receive the audio signals from the processing circuit in a real-time manner, while the cyclic storage device continuously stores the audio signals last outputted by the demodulator circuit over a predetermined time interval;
or (ii) at least one other mode wherein the audio circuit is connected to receive the signals previously stored in the cyclic storage device;and a Standby manual switch actuatable to select a Standby Mode to connect the cyclic storage device to said processing circuit to store the audio signals therein even when the radio receiver is otherwise turned off. - View Dependent Claims (13, 14, 15)
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16. A buffer system for radio receivers having a processing circuit outputting audio signals to an audio analog circuit for reproduction as sounds, said buffer system comprising:
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an analog-to-digital converter for converting to digital form the analog signals outputted by the processing circuit; a digital cyclic storage device connected to the processing circuit for continuously storing in digital form the audio signals last outputted thereby over a predetermined time interval; and a control circuit including a mode selector comprising; a Mode-Selector manual switch actuatable to select either (i) a Normal-Listening Mode, wherein the audio circuit is connected to receive the audio signals from the processing circuit in a real-time manner, while the cyclic storage device continuously stores the audio signals last outputted by the demodulator circuit over a predetermined time interval;
or (ii) at least one other mode wherein the audio circuit is connected to receive the signals previously stored in the cyclic storage device;and a Forward-Mode manual switch actuatable to select a Forward Mode, in which the cyclic storage device is connected to said processing circuit to store the signals therein for a predetermined time interval immediately after the radio receiver has been turned off. - View Dependent Claims (17, 18, 19)
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Specification