Audio output circuit in electronic apparatus with composite display function

• US 5,237,418 A
• Filed: 09/04/1991
• Issued: 08/17/1993
• Est. Priority Date: 09/04/1990
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kaneko, Tomoyuki
• Primary Examiner(s): Kostak, Victor R.
• Application Number:
  US07/754,544
• Time in Patent Office: 713 Days
• Field of Search: 358/181, 358/185, 358/198, 358/84, 358/93, 358/230, 358/242, 358/22
• US Class Current: 348/565
• CPC Class Codes: H04N 21/4316 for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
• CPC Class Codes: H04N 21/4852 for modifying audio parameters, e.g. switching between mono and stereo
• CPC Class Codes: H04N 5/45 Picture in picture , e.g. displaying simultaneously another television channel in a region of the screen
• CPC Class Codes: H04N 5/607 for more than one sound signal, e.g. stereo, multilanguages H04N5/602 takes precedence
• CPC Class Codes: H04R 5/04 Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments combinations of amplifiers H03F3/68; stereophonic systems H04S

Abstract

An audio output circuit in an electronic apparatus equipped with a composite display function where a plurality of pictures can be displayed on composite screen regions of a single display screen. The circuit includes an audio signal switching circuit for selectively switching audio signals relative to the pictures displayed on the individual screen regions and outputting the selected audio signal to a speaker. The circuit also includes a simultaneous audio output switching circuit for selecting a plurality of audio signals out of those relative to the pictures displayed on the individual screen regions and then outputting the selected audio signals simultaneously through a plurality of speakers. Thus any audio signal(s) relative to the picture(s) displayed on the individual screen region(s) can be heard either selectively or simultaneously through the speaker(s).

Claims

1. An audio output circuit in an electronic apparatus equipped with two loudspeakers and a composite display function for displaying a plurality of pictures on composite screen regions of a single display screen, said circuit comprising:

simultaneous audio output means for selecting two audio signals corresponding to two of said plurality of pictures displayed on said composite screen regions, and outputting the selected two audio signals simultaneously to said two loudspeakers.