Mono/stereo switching circuit
AssigneesSony Corporation, Sony Electronics Inc.
InventorJoseph J. Dombrowski, Jr.
Life of this patent
Estimating the term…
Abstract
A mono/stereo switching circuit wherein first, second, and third switches operate in circuit which is arranged so that (1) when the first switch is engaged, and the mono/stereo switch is engaged, the signal at a first mono input is provided to both of a pair of left and right output channels; (2) when the second switch is engaged and the mono/stereo switch is not engaged, the signal at a second mono input is provided to both of the pair of left and right output channels; and (3) when the input signal is a stereo signal at the first and second inputs, and either of the first and second switches is engaged, and the mono/stereo switch is engaged, the input signal at the first input terminal is provided at the left channel output while the input signal at the second input terminal is provided at the right channel output.
Claims11
A mono/stereo switching circuit, comprising:
- a first input terminal for receiving a first input signal;
- a second input terminal for receiving a second input signal;
- a first switch in circuit with both of said first and said second input terminals for selectively receiving said first and said second input signals;
- a second switch in circuit with both of said first and said second input terminals for selectively receiving said first and said second input signals;
- and
- a mono/stereo select third switch for selectively providing either or both of said first and said second input signals as a pair of output channels, wherein said first, said second, and said third switches are arranged so that (1) when the first switch is engaged, and the mono/stereo switch is not engaged, the first input signal is provided to both of the pair of output channels;
- (2) when the second switch is engaged and the mono/stereo switch is not engaged, the second input signal is provided to both of the pair of output channels;
- and (3) when the first input signal and the second input signal together comprise a stereo signal, either of the first switch and the second switch is engaged, and the mono/stereo switch is engaged, the input signal is provided as one of said pair of output channels while the input signal as the second input terminal is provided at the other of said pair of output channels.
A mono/stereo switching circuit, comprising:
- a first input pair of terminals, for receiving a first input signal;
- a second input pair of terminals, for receiving a second input signal;
- a first multiple connector switch in circuit with said first input pair of terminals;
- a second multiple connector switch in circuit with said second input pair of terminals;
- and
- a mono/stereo third select switch which provides a two channel output;
- wherein said first and said second multiple connector switches are connected so that said first input signal is provided to said second multiple connector switch when said first switch is not engaged and said first input signal is provided to said mono/stereo third switch when said first switch is engaged, and wherein said second input signal is provided to said first multiple connector switch when said second switch is not engaged and said second input signal is provided to said mono/stereo third switch is engaged;
- and
- wherein said mono/stereo third select switch selectively provides, in cooperation with the positioning of said first and said second switches, any one of:
- (1) a monaural output at both said two channel output which is representative of said first input signal received at said first input pair of terminals, (2) a monaural output at said two channel output which is representative of said second input signal received at said second input pair of terminals, and (3) a stereo output at said two channel output which is representative of said first input signal and said second input signal received at both of said first and said second respectively input pair of terminals.
Dependencies are inferred from the claim text.