Speaker system and the same for television sets

A speaker system, comprising:

• a speaker having a diaphragm for radiating sound waves, said diaphragm having a front surface and a rear surface;
• a first acoustic waveguide for guiding sound waves radiated from the front surface of said diaphragm so that the sound waves are radiated in a forward direction;
• a box joined to an end of said first acoustic waveguide, said box being defined by walls and containing said speaker, one of said walls forming a reflecting surface for changing a direction of propagation of sound waves radiated from a rear surface of said diaphragm from a backward direction to a third direction which is different from the forward and backward directions;
• a second acoustic waveguide joined to said box for guiding sound waves reflected by a reflecting part so that the sound waves are radiated in a further different direction;
• and
• a reflecting member provided proximate the mouth of said second acoustic waveguide, for at least one of diffusing the sound waves and determining a radiating direction of the sound waves from the mouth;
• wherein the first acoustic waveguide and the second acoustic waveguide are arranged so that approximately the same acoustic load is applied on the front surface and the rear surface of the diaphragm.

A speaker system, comprising:

• a speaker having a diaphragm for radiating sound waves, said diaphragm having a front surface and a rear surface;
• a first acoustic waveguide for guiding sound waves radiated from the front surface so that the sound waves are radiated in a forward direction;
• a box joined to an end of said first acoustic waveguide, said box containing said speaker and being defined by walls, one of said walls forming a reflecting surface for changing a direction of propagation of sound waves radiated from the rear surface of said diaphragm from a backward direction to a third direction which is different from the forward and backward directions;
• and
• a low frequency range radiating part projecting into an upper portion of said box to form a mouth for radiating only the low frequency range of the sound waves reflected by said reflecting surface;
• wherein the first acoustic waveguide and low frequency range radiating part are arranged so that approximately the same acoustic load is applied on the front surface and the rear surface of the diaphragm.

A television set including a speaker system, comprising:

• a television cabinet having a front surface and a top surface;
• a speaker disposed in said television cabinet having a diaphragm, said diaphragm having a front surface and a rear surface;
• a first acoustic waveguide for guiding sound waves radiated from the front surface of said diaphragm in a forward direction through a sound radiating mouth attached to said front surface of said television cabinet;
• and
• a second acoustic waveguide for guiding sound waves radiated from the rear surface of said diaphragm in a backward direction, said second acoustic waveguide having a reflecting part which reflects said sound waves traveling in said backward direction in a direction which is towards an outward direction of the television cabinet and which is different from said forward and backward directions;
• wherein the first acoustic waveguide and the second acoustic waveguide are arranged so that approximately the same acoustic load is applied on the front surface and the rear surface of the diaphragm.

A speaker system for use in a television set, said television set having a cabinet having a top surface, a front surface and side surfaces, and containing a display and said speaker system, said speaker system having left and right channels, comprising:

• first and second speakers for left and right channels disposed respectively on a left side and a right side of a display of said television set, each of said first and second speakers having a diaphragm for generating sound waves, each of said diaphragms having a front surface and a back surface;
• first and second acoustic waveguides for guiding sound waves radiated from the front surface of the diaphragm of each of said first and second speakers in a first direction towards said display, and for radiating the sound waves out of the front surface of said cabinet;
• and
• third and fourth acoustic waveguides disposed within said cabinet respectively joined to ends of said first and second acoustic waveguides and respectively containing said first and second speakers, said third and fourth acoustic waveguides guiding sound waves radiated from the rear surface of the diaphragm of each of said first and second speakers in a second direction different from said first direction, and for radiating the sound waves out of a surface of said cabinet other than the front surface of said cabinet;
• wherein the first and second acoustic waveguides and the third and fourth acoustic waveguides are arranged so that approximately the same acoustic load is applied on the front surface and the rear surface of each respective diaphragm.