Unitary panel multiple frequency range speaker system

• US 4,181,819 A
• Filed: 07/12/1978
• Issued: 01/01/1980
• Est. Priority Date: 07/12/1978
• Status: Expired due to Term

• Current Assignee: Kurt B. Cammack
• Original Assignee: Kurt B. Cammack
• Inventors: Cammack, Kurt B.
• Primary Examiner(s): Olms, Douglas W.
• Application Number:
  US05/924,043
• Time in Patent Office: 538 Days
• Field of Search: 179/1 GA, 179/1 G, 179/1 E, 179/1 D, 181/144
• US Class Current: 381/300
• CPC Class Codes: H04R 3/14 Cross-over networks
• CPC Class Codes: H04R 5/02 Spatial or constructional arrangements of loudspeakers
• 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

A speaker enclosure is provided with an elongated vertically oriented flat panel having a plurality of vertically spaced speaker openings and a sound port positioned near the upper end of the panel. A pair of stereo related signals are provided to the speaker enclosure, each signal being coupled to a respective crossover network. A first combination of speakers, including a tweeter, mid-range, and woofer is coupled to a first crossover network and provides reproducibility of a first frequency range of audible sounds, and a second crossover network is coupled to a second combination of speakers, including a tweeter and a woofer, to provide a second frequency range of audible sounds which is narrower than said first range. The first and second ranges and crossover frequencies are selected to enhance a first music pattern, such as "jazz," and the second frequency range and crossover frequency network is selected to enhance a second music pattern, such as "rock." The channels may be selected for playing separately for enhancing their respective music patterns or may be selected to play simultaneously to enhance the overlapping frequencies in the frequency ranges.

Claims

1. A speaker system comprising:

a speaker enclosure having a substantially flat panel;

said panel having a plurality of speaker sound transmission areas, each area for receiving in sound transmission relation a sound emitting speaker to direct sound emissions from said areas in a direction substantially transverse to said panel;

means for producing multiple channels each carrying respective electrical signals for transducing to sound waves;

a plurality of speakers being mounted to said panel in sound transmitting relation to respective of said speaker areas;

a plurality of crossover networks;

a first crossover network being coupled between a first channel and a first combination of speakers for transducing electrical signals to sound waves;

a second crossover network being coupled between a second channel and a second combination of speakers for transducing electrical signals to sound waves, said second combination of speakers being different than said first combination;

said first combination of speakers is responsive to a first range of frequencies and said second combination of speakers is responsive to a second range of frequencies different than said first range of frequencies, said first and second ranges of frequencies selectable to enhance respective predetermined sound patterns.

2. The apparatus of claim 1 wherein said panel is elongated and substantially vertically oriented;

a sound port being positioned adjacent the upper end of said panel for sound transfer from the speaker enclosure.

3. The apparatus of claim 1 including selecting means for selecting said first channel only, said second channel only, and both said channels, whereby when said first channel is selected said first sound pattern will be enhanced, when said second channel is selected, said second sound pattern will be enhanced, and when both channels are selected, the overlapping frequencies in said first and second ranges will be enhanced.

4. A speaker system comprising:

a speaker enclosure having a substantially flat panel;

said panel having a plurality of speaker sound transmission areas, each area for receiving in sound transmission relation a sound emitting speaker to direct sound emissions from said areas in a direction substantially transverse to said panel;

means for producing multiple channels each carrying respective electrical signals for transducing to sound waves;

a plurality of speakers being mounted to said panel in sound transmitting relation to respective of said speaker areas;

a plurality of crossover networks;

a first crossover network being coupled between a first channel and a first combination of speakers for transducing electrical signals to sound waves;

a second crossover network being coupled between a sound channel and a second combination of speakers for transducing electrical signals to sound waves, said second combination of speakers being different than said first combination;

said first combination of speakers includes a first tweeter having a frequency producibility range to a first upper limit and a first woofer having a first lower limit and said first crossover network coupled to said tweeter and woofer having a first crossover frequency between said tweeter and woofer;

said second combination of speakers includes a second tweeter having a frequency producibility range having a second upper limit, a mid-range speaker, and a second woofer having a frequency reproducibility range having a second lower limit, said second crossover network being coupled to said second tweeter, mid-range speaker, and second woofer and having a second crossover frequency between said woofer and mid-range speaker and a third crossover frequency between said mid-range speaker and tweeter.

5. The apparatus of claim 4 wherein said panel is elongated and substantially vertically oriented;

said areas being substantially vertically spaced one from the other;

said second woofer being in sound transmission relation with the lowermost first area;

said first woofer being in sound transmission relation with a second area next above the first area;

said mid-range speaker being in sound transmission relation with a third area next above said second area;

said second tweeter being in sound transmission relation with a fourth area next above said third area; and

said first tweeter being in sound transmission relation to a fifth area next above said fourth area.

6. The apparatus of claim 4 wherein said first upper limit is approximately 15,000 hz.;

said first lower limit being approximately 35 hz.;

said first crossover frequency being approximately 3,000 hz.;

said second upper limit being approximately 20,000 hz.;

said second lower limit being approximately 22 hz.;

said second crossover frequency being approximately 500 hz.; and

said third crossover frequency being approximately 4,500 hz.